Should children be taught abt sex by parents?

but arent there gonna come a time when ull just want to settle down?..then wont u be alone?..ur bros and sis will become entwined in their own lives with spouse and kids and might grow away from u..

how long will u keep ur life exciting by yourself?..one day ull want ot come home and relax..waht will u do then when no one is there?..no spouse no kids?..:(