Why do you feel something is wrong with you for not wanting to participate in vapid blathering about things that really don't interest you? I feel the same, and know many others who do too.
As far as other married couples, vs single people, can't help you there, because I'm a mum and sitting around a ballet recital sounds about as riveting as chewing sand, no matter how proud I am off my kids. Lol. That doesn't mean that's all parents do though. Parents also have date nights, and like to socialize. So don't sell them short based on them having kids
And not all singles are vapid either. Try going to things that you enjoy, and not boxing people based on your assumptions, and see what happens