Procrastinating? Me too!! 
My mom stayed home until we were in school, then WAH until we were in the upper elementary grades, and then WOH full time. She still does.
I think WOH is really ideal for me b/c it gives me an identity other than as a "mom" which is important for me. I also have absolutely no clue what I would do after my kid grows up and leaves the house if I stayed home. I want a career after my kids leave the house. I want a LIFE - one that doesn't revolve around them. I know that SAHM's can achieve that, but not without a significant amount of effort, and I'm not a social person by any stretch of the imagination, so I really need outside influences to force me to create relationships outside my immediate family.
I mean, what do people do after their kids move out? Both my parents work, and they have hobbies (dad flies, mom sails - they do both together but my mom isn't a pilot so she rides along), so they're pretty busy when us kids aren't home (none of us live at home anymore). But what would they do if they hadn't both worked and didn't have careers? I honestly don't know. I guess they could start looking for a career, but thats difficult in middle age, going back to school would be hard unless they had the money to afford it, neither of them would be happy having a "job" and not a "career". I don't know. I know my mom enjoyed being home when my older brother and I were very little, but it was also completely a financial waste for her to work - I think she netted like $10/week after daycare expenses (we're 6mo apart b/c big brother was adopted).
I don't know, I guess I think I liked that my mom wasn't SAH b/c she had other things going on - she wasn't so focused on me and my brothers. I mean, she WAS focused on us, she's a GREAT mom, but we also had the opportunity to learn how to be independent with some limitations. Like, she worked some evenings, and so we had to take the bus to some activities once we were teens. Or, when I had soccer with my brother after school we took the bus home together.
We weren't entirely left to our own devices though - my dad would sometimes drive one way, or pick us up if we were working late, my dad drove me to crew at 4:30am every day when I did crew in high school. I don't know, some of the SAHM's that I knew growing up were too........something. Not quite sure what. Ok, I'm going to stop while I'm ahead. t2009 - sorry if that made no sense. Since we're both studying for the danged bar exam I'm sure you understand that my brains aren't fully functional atm.
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