some people think everyone else's children are their business.
Isn't tending to your child and interacting with them and nurturing them to grow and be independent the whole reason for having children?
Both my kids have been like that. DD is now a very happy, bright social child of nearly 5. DS is a bit more independent earlier, but you know what I think that's DD as company as opposed to what I've done.
Have faith in yourself babe. Parenting is a tough gig on any day, and most of them there are people who don't agree with your style, but pooey to them.