I'm with ya on the puking kids (we are on our second puker and waiting to see who gets it next) and not so much being a striver. I like having a nice home, attractive clothes etc... but I LOVE working at a non-profit so unless I win the lotto I will have a life I enjoy more so than a lot of things.
Funny thing about that resentment. It can creep in when you least expect it and be very subtle too.