Babies want to eat the same food their parents eat but are given 'baby food' instead, then parents wonder why they have to cook separate meals for their children. For more information on baby food check out this article over at Skinny Gourmet. For more science check out this article at the National Center for Biotechnology Information.
Babies are given brightly colored, flashing, moving, noisy toys and then wonder why their children cant sit still and focus on one thing. Here is an informative article on how to build focus in your youngling.
Babies cry why they have to go in their diaper but parents force them to do it for years then parents wonder why its so hard to potty train them.
Parents "never wake the baby" then wonder why their kids are so grumpy when woken up in the morning.
Parents spank their children and then wonder why they hit each other.
Parents grab thing out of their babies hands and wonder why they 'steal' other's toys.
What else do we have backwards?