2000 a month child care if both parents working = 24 grand a year
dont forget all the things that break and need replacing when least expected. fridge, microwave, tv, washing machine, clothes for kids and parents.
your assumption that one parent stays at home to take care of kids misses the point. most family incomes of 150k gross require both parents working not one.
if one parent is on 150k and the other is stay at home, then child care costs are avoided
