I slam doors a lot, by accident, because I have dyspraxia.
I also have ADHD and autism, and it makes learning habits like not slamming, remembering to check things twice, and deviating from what I'm used to really difficult.
I'm the same with toilet lids. I am used to a soft close toilet lid, and I know the toilet at DP house does not have a soft close toilet lid, but because I use it less frequently than my own toilet, it doesn't cross my mind, I drop the lid, make a loud bang, and then kick myself for not remembering that it isn't a soft close lid like the umpteen other times I've done it and promised myself I'll remember for next time. You'd think I'd remember given that the banging startles me worse than anybody else and I'd do anything I could to stop it, yet like Sisyphus, I feel eternally doomed to repeat my actions despite the best intentions in the world.
None of these things were diagnosed until I was almost 30 either so I've just been clumsy, careless and accident prone all my life.
Who knows what the SD has or hasn't got, but if she's not able to form these habits then perhaps it's not simply behavioural as people seem to be suggesting. It's not normal behaviour to repeat such a huge, costly, and impacting mistake over and over, especially when it not only impacts others but impacts yourself as well.