It is not a common use of "paid", but it sounds good. It can mean different things: The parent was not involved with the children and spoiled them with toys/money. The parent had to sacrifice a lot of money (or time/work) for the children (maybe for them to study or do an expensive extra-curricular activity).
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PreciousJonesShe paid for our childhood.It's too ambiguous. I would not use it. It almost connotes (to me) that she was somehow ultimately made to regret having done such a bad job raising her children!
Can this be used?