Infant mortality rate has decreased which means less children are born (because don't have to have say ten kids to ensure one survives due to advances in medicine). This means parents can concentrate all their love on one child, and can grow attached their kids without the fear of them dying.
Infant mortality rate has decreased which means less children are born (because don't have to have say ten kids to ensure one survives due to advances in medicine). This means parents can concentrate all their love on one child, and can grow attached their kids without the fear of them dying.