I live in Carmel Valley. I would say you do see a lot of nannies in some places, but you also see a lot of stay at home moms. The comment about pretentious. I would say depends on which neighborhood you're in. I guess if you break into the over $1mil, you do see more of the name brand cars and such. I guess I just live around the worker bees. I haven't had really any issues with people be pretentious here. Seems to be good families with good values. Can't comment on 4sranch. I like how it's new, but don't like how in the summer time it gets really hot. I guess where I live, there is an ocean breeze, so i don't have a need to run A/C during the summers.
I do have a live in a nanny, and personally I think she is fine. But at the same time, I'm aspiring to one day be a stay home dad when our financials allows it.
Then again, I don't have a lot of blond and brunette friends here that fit the age old stereotypes, so I wouldn't know about the botox and fake other things comments. I would think that you would have superficial people all over southern ca. Most of my friends and wifes are all pretty well educated, some more than me. A lot of biotech phd's which I have to admit for ph'd are pretty good looking.