Your child is not yours

He (or she) is a rental. 

Her permanent owner is her future self.

There will be stiff penalties to pay if you don't return your child to his future self in good order.

Actually, it's more like a stock holder. 

Remember the Parable of the Talents.

H/T Stefan Molyneux on the question of whether (note spelling - not weather) your children are your property.