I think this is a perfect example of something that gets misread and/or egregiously oversimplified by NT researchers, or is a "feel-good" fantasy they throw at the parents of autistic kids.
When I'm going on a trip, I might spend days obsessively planning every detail of it... then, more likely than not, completely throw those plans in the trash the moment I arrive, if not sooner. The plans are fun to make and reassuring to have, but would make me feel constrained and imprisoned if I were forced to actually *follow* them.
On one hand, I'm much more productive and/or less likely to forget to do things if I make a schedule. On the other hand, if I don't *have* to get something specific done, I'm happier and more relaxed when I can just wander through the day aimlessly. Some of my most fun and memorable afternoons have been spent roaming around some new city with no particular goal or plan in mind, and just kind of treating it like a large-scale theme park with interesting things to do. And woe to anyone who tries to forcibly disrupt a routine or schedule I've voluntarily made or adopted.
In other words, I break routines and schedules all the time with complete happiness... but ONLY when the change is 100% my own decision. If somebody tries to forcibly make me change, I dig in, get upset, and might even fight back. The main difference is that when I was a child, I'd do it as a matter of reflex, and just keep resisting & fighting for the sake of resisting and fighting. Now, I might start resisting any change out of reflex, but decide on my own that it's not a big deal a few seconds later and calm down.
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Your Aspie score: 170 of 200 · Your neurotypical (non-autistic) score: 34 of 200 · You are very likely an Aspie [ AQ=41, EQ=11, SQ=45, SQ-R=77; FQ=38 ]