Rather than a question of adulthood vs childhood, the reality is that humans evolved certain traits and abilities that mean superstition and religion are in our nature, for better or worse, like it or no.
Humans had to become adept at determining the intent of other humans and of animals to the point where we tend to anthropomorphize animals, inanimate objects, even concepts like justice and luck and fate.
We evolved mechanisms to avoid harm by remembering past experiences and predicting future ones. Though flawed from the standpoint of rationality, these adaptations were enough to prevent extinction of humanity at large, while leaving us saddled with numerous cognitive biases that leave us more likely to believe unfounded claims of a spiritual nature.
The antidotes to irrational, superstitious thinking are knowledge and critical thinking skills. It takes time, effort, and dedication to gain the upper hand against our nature.
It may be impossible to completely overcome our nature. Still I do hope we are able to set aside the most harmful manifestations of our nature: dogmatic thinking and religious zealotry.
However, if one is evaluating "functional literacy" that means determining if one reads well enough to function in society.
So to truly evaluate functional literacy for native Spanish speakers, it seems like one would have to somehow factor in two things.
First, English is the de facto language in the US. Second, Spanish language translations are provided for a number of written things (for example, our school district letters to parents).
One would be more functional being fluent only in English than only in Spanish, sure (and it depends on which part of the country even which part of a city). But one would surely be more function having some knowledge of English and fluency in Spanish.
I'm not convinced that social media causes a loss of reading skills. I suppose it is possible but I would want to see some studies on the topic. Anecdotally, I do find myself reading less than I used to. I took a number of English lit classes as electives purely for fun and enjoyed reading a number of fun works that I think would hopefully qualify me as reading above a 6th grade level. But that was many years ago. I haven't done a lot of reading in the last decade except for news articles about everything going to hell. Of the few books I have read, I read them for pleasure and each was lightweight, not too much analysis and explication required, one rather challenging history book about the lead up to the first world war notwithstanding, though it's difficulty is due more to more complex sentence structure and arcane vocabulary, and less to its erudite discussion of an already complex topic. Nevertheless, I don't believe I have had any difficulties demonstrating far beyond mere functional literacy you described despite my infrequent reading of anything longer than a news article or Reddit post. Still, this is anecdotal and so I would be interested to see if any scientific evidence exists to connect a loss of reading skills with disuse and to what degree those skills are diminished.
It isn't just laundry of course. This meme speaks to motivation as other folks commented.
Motivation can come from emotion either from response to external input or ones own thinking.
Motivation can also come from the brain's executive function, where you decide to "Just do it".
So if someone yells angrily at me to do a thing, or if I am freaking because the deadline is early upon me, or there is an emergency, or if a friend asks for help, the emotions can motivate me easily as is the case for anyone.
If I know I need to work on a boring thing today to save myself from panic later, the "just do it" part of my brain doesn't have enough oomph to actually get me to do the thing. Like, no amount of pushing myself, self goading, self talk, nothing. It's like trying to push a car alone with the parking brake on. I just can't budge myself.
When I am on medication, it can still be hard but I actually feel like getting something done, I want to do it, and I am able to just will myself to do the thing. I can just be like "yeah this sucks, it's boring but fuck it let's do this" and then, unlike before, I actually start doing it. Which is still a marvel to me even though I have been on meds for several years. I don't think most people find self motivation to be a novel thing to marvel over. I think most people are more able to convince themselves to do the sucky boring thing if they just set their mind to it. Being able to do that (even if difficult) is taken for granted.
Which is why ADHD people are told they are lazy or told to "just do it already". Normal people don't know what it is like to have a broken "just do it cortex" :)
One of Dr. Barkley's videos explain the motivation issue really well.
And the thing with ADHD is that it is a constant, every minute of every day struggle with motivation if your line of work involves too little excitement and a lot of tedious boring stuff.
It was bad enough with me that the only way to function even close to average was to be in constant fear and panic about forgetting things, missing deadlines, getting in (more) trouble, while failing to avoid those things constantly and gaining a reputation as an unreliable lazy flake, eroding trust, and performing poorly in work, school, in relationships. The result was getting lower grades than I could have without ADHD as well as missing out on career growth, losing friends, etc.
Rather than a question of adulthood vs childhood, the reality is that humans evolved certain traits and abilities that mean superstition and religion are in our nature, for better or worse, like it or no.
Humans had to become adept at determining the intent of other humans and of animals to the point where we tend to anthropomorphize animals, inanimate objects, even concepts like justice and luck and fate.
We evolved mechanisms to avoid harm by remembering past experiences and predicting future ones. Though flawed from the standpoint of rationality, these adaptations were enough to prevent extinction of humanity at large, while leaving us saddled with numerous cognitive biases that leave us more likely to believe unfounded claims of a spiritual nature.
The antidotes to irrational, superstitious thinking are knowledge and critical thinking skills. It takes time, effort, and dedication to gain the upper hand against our nature.
It may be impossible to completely overcome our nature. Still I do hope we are able to set aside the most harmful manifestations of our nature: dogmatic thinking and religious zealotry.