I don't know if it's more indicative of my friends, but one thing that I have noticed is that there are quite a few stay at home dads. The reasons usually come down to two flavours...

Freelance/Work-at-home/Consultants. They are home anyways and have a certain degree of flexibility that allows them to shift their shedules around the kids (particularly once they start pre-school/kindergarten).

Fathers who have better benefit packages than their spouses. I've been noticing that there are couples these days that play the numbers game as the deciding factor in deciding which one stays home. This may be dependant on any number of factors, including what kind of "top up" they get, or whomever has the higher salary. In the case of a few stay-at-home dads I know, it's because they have government jobs or very good union jobs (such as for an auto plant), or that their wife is the higher earner.

Does anyone else notice a similar trend amongst the couples you know?