>Why then don't one of the parents choose to stay at home or work at home
Well if both parents are fairly career driven, it's pretty hard to stay at home for 6+ years until full day school starts, and that is only for 1 kid.. could be 8/9 years with 2 kids close in age. Since it's usually the woman, she is basically giving up any solid career having that kind of work gap.
And you say 'work at home' but you can't have a fulltime working at home job with very young kids. You could manage it to some degree at age 4/5+ but before then you would hardly have any time to actually focus on a job at home.
Well if both parents are fairly career driven, it's pretty hard to stay at home for 6+ years until full day school starts, and that is only for 1 kid.. could be 8/9 years with 2 kids close in age. Since it's usually the woman, she is basically giving up any solid career having that kind of work gap.
And you say 'work at home' but you can't have a fulltime working at home job with very young kids. You could manage it to some degree at age 4/5+ but before then you would hardly have any time to actually focus on a job at home.