An average citizen's life can be seen as an investment project: the State starts investing into prenatal care, the child's education etc., a young man starts making money and paying taxes (breaks even here), the overall balance goes positive but declines slightly in the end of life (a pension from the State).
Can I see stats on "closing balance" figures at least for US citizens? I bet such figures do exist. Can't google them out though, probably because of my not-so-good English.
Could you please point me to some info on this topic?