As an Ex-Christian, I miss the "third place" but I do not miss the church. I don't know where to get that same idea for my kids but I also don't want them growing up with a belief in the doctrine I grew up with. I also have strong feelings about what religions my child is exposed to. I don't mind him being exposed to multiple religions, but there are certain religions I would consider secondary and don't want to be his primary exposure.
I'm fairly alone in this, and I say Ex-Christian to indicate I'm not Atheist but I don't know if that's true. Anyway, this is something I've been struggling with a lot. I just spent 3 hours last night talking to a Power salesman, because we had a good time chatting and I don't get that outside my friends and work. There is no forced place for me to talk to acquaintences.
Honestly, if I didn't disagree so strongly with the theology of the LDS (Mormon) church I'd go back to that. They are FANTASTIC for kids, parents, events, etc. They instill great morals (other than homophobia and some other things I disagree with). But they are in general very nice people.
So where do I go for a "third place" without God being involved, but I still get the, "hey man we missed you last week, where were you." and "Have you given your money to God lately?"
Sorry this struck a nerve, and I'm almost ready to go back to the LDS church just so Sam has people he knows but to try to counter the Theology by exposing him to other beliefs as well. IDK.