I have been pondering this a lot lately. My son is 7 , an only child, has mild to moderate ASD, he doesn't have a learning disability and is quite bright but very delayed socially and emotionally and his ability to communicate is limited. For example he has no sense of danger and often goes into his own world when we are out so he needs supervised when outside so he doesn't accidentally walk out into a road when he's lost in thought. He also doesn't understand people can be manipulative and could take advantage of him.
I am 36, his dad is 40, we don't want another child but we are also worried about what could happen to him when he's older and we are not around. We don't have much family either so my son really would be on his own when we are both gone and I feel so guilty about this.
AIBU to have another child just for my own peace of mind and for him, so that he at least has a sibling when we are no longer here?