This is a mutual experience that many people can relate to but its mechanics is also core Adhd where this scenario is more extrme and frequent. (Possibly even with important life choices and not just hobbies)
Normalize acknowledging the smaller neurodivergent features that exists in most people as it can help them understand major ones. but do keep it distinct from “everyone has a bit of adhd/autism/anxiety” which is tonedeaf
Aaaalmost happened to me, unti one I day I thought about putting inside a cup of milk, a banana, 1-2table spoons of greek yogurt and a vanilla icecream protein poweder scoop (from ON if it matters). I made my blender useful again and found a simple and quick breakfast :)
Sure, some people do this sometimes. But I have a huge list of things I've started, gotten super into, spent statistically significant money on, and then never used or looked at ever again.