Pardon me friend but could I ask you what "stimming" means?
Ah, no problem!
Stimming, or self-stimulation, is considered a ‘repetitive behavior’. It is most commonly associated with autism, but it also sometimes comes with ADHD, dyspraxia, and other developmental disabilities! They are also associated with mental illness, which is part of the reason why stimming is considered ‘bad’ by neurotypical/allistic people and even many neurodiverse people. (Which isn’t to say that it should be stigmatized, because it shouldn’t and it’s horrible that it is. It’s just that allistic/neurotypical people are kinda really ableist- even disabled people can be pretty ableist really - and they therefore see anything considered different as something that is wrong.)
Another reason why stimming is looked down upon by neurotypicals is that it’s a form of body language that they can not read and therefore it unnerves them. It’s kinda silly, actually- you don’t see neurodiverse people who can’t read neurotypical body language looking down upon neurotypicals for having body language different than their own, so why do the opposite?
Among these ‘repetitive behaviors’ include staring at patterns, rocking back and forth, chewing on things, hand-flapping, finger-flicking, pacing, etc. These are only examples, however! There are many different ways to stim!
As you may have already guessed, neurotypicals also stim- nail biting, leg-bouncing, etc. However, I find that neurotypical people often find these things less necessary as a way of coping with outside stimuli as opposed to neurodiverse people.
Sorry for the ramble, neurodiversity has actually been a special interest of mine for a few years so I’m a bit of an encyclopedia with this stuff. :o Also sorry for all of the science-y words!!!!!! I tend to do that sometimes aha!
If I said anything incorrect, please do tell me! I tried to make this as comprehensive as possible!