I always feel so frustrated when I read ops like yours.
You would think me, well off, speak POSH, look posh probably? You would think me, not wanting to talk to you, and seem stand off ish.
In fact I am not well off, at all, I am not posh either, WC family roots and I also feel very very awkward at toddler groups.
Because I am shy and find it hard to instigate conversation and small talk.
Not because I think the others have more ££ or less ££ or look common
or posh.
Do a test to yourself, the next time you are out with partner, or dh, or mother or sister and having a chat, after a while, ask yourself, have you noticed someone coming into the playpark/cafe/restaurant/ alone, or sat alone?
often when chatting and keeping eye on child, you simply do not notice people alone or sat alone.