For me, yes definitely. School forced me to become socially reclusive in order to survive. It wasn't simply the students either, the teachers were the largest part of the problem (to be bullied and humiliated by someone in a position of absolute social power, and then have them get your parents on side "not trying hard enough..." is the kind of thing you don't forget).
(Primary school was a very small place, small enough for a given year to have a single "in" clique). Believe it or not, I was relatively normal before that time, but by 7th grade, I was a complete recluse - no problem talking to adults, but little interaction with my peers beyond what was necessary (not that I faced much bullying by that stage, simply so lacked trust, and knew so few people that it wasn't worth making the effort). I have slowly regained my social normality since.
TheNameless wrote:
My younger boy rarely has aggressive outburst at all anymore and seems content - he's even developed new hobbies of drawing comic strips and animating on his tablet.
It may have been good for him to leave, if those aggressive acts were signs of frustration (to have on the one hand an inability to communicate ones needs but also view vulnerability as weakness is an experience few children or adults for that matter handle well). It can be worthwhile talking about these incidents even long after cool-down, to understand what lead to the outburst (what he was feeling / hiding with aggression is more important than the absolute facts of the situation). He will need to learn how to deal with these (and frustration tolerance in particular) in a healthy way.
TheNameless wrote:
Family say it's weird and not good for them to spend so much time at home but they complain outside is too noisy, smells bad and there are too many people.
I would be worried about this too, it sounds like an excuse to stay within their comfort zone, but avoidance of situations leads to an association of them with fear and stress. Sometimes we really need guidance to step outside of our own thought and behavior patterns.
TheNameless wrote:
Is it possible that the daily sensory overload of being in school has pushed them into becoming so antisocial? It doesn't personally bother me that they are like this as I can relate, being this way myself, but I feel as though school might have been the trigger and I feel a sense of guilt that I didn't withdraw them sooner.
School is amongst the most intensive social situations we will face in our whole lives (Aspie or NT), yet we are thrown into it at a time when we have the greatest gaps in development from our peers and are mentally least able to deal with it. Add to that, competitive pressures socially, academically and through formal sporting programs (not to mention competitive parenting ), it's almost certain that children will become overwhelmed (intense dislike of school is certainly not unique to children on the spectrum).