I know this is probably just me overthinking things but should I be worried about my 1yr old? He's an only child, if that matters, and tried taking him to baby & toddler classes but he just got so upset at the other children walking or crawling over to him that I've had to just stop taking him. I don't think he's behind developmentally. Been walking independently from 10mo, can't talk yet but does babble and make sounds like he's trying to talk. He's very inquisitive, always working out how things work and especially watching trajectories when he places, rolls, throws things. So not worried there but it's the way he just prefers playing by himself, no interest at all in other children. Should I be worried or am I just stressing over nothing? Tia for any replies 🙏