Same in the US. Very nearly all exterior doors in public buildings open outward for safe egress. Doors in homes tend to open inward (presumably to protect the hinges.)
I think it's for security reasons. The hinges are one z but the latches are also protected if the door opens inward. If it's outward, you need to spend a lot more to secure them.
And outward facing doors are only really needed for areas with high volume of traffic where people could pile up at the doors in an emergency. That's not a concern in a house with a handful of people.
We had an audit two weeks ago and they had a bunch of inner safety doors rebuilt the other way around for that very reason. They had just been built a month before, too!