Among the other great answers, here's one parenting fail that I saw that really irked me.

I was eating in a burger chain store and watched through the window as a woman pulled up in a minivan. She then proceeded to haul this enormous, deluxe stroller out of her van, set it up, lift her toddler out of his car seat, and strap him into his stroller.

Distance from car to front door: about 20 feet.

She wheeled him to the door, expertly negotiated the door and the stroller, walked up to the counter and ordered (about 15'), got her food, and sat down at a table (10'). All the while this kid never left the stroller.

Now maybe there was something wrong with the little guy that he couldn't walk, but he looked to be about 2 or 3 and developmentally normal.

Yes, I know it's easier and possibly safer to keep your kid safely contained in his stroller, but kids need to walk and run and get exercise. Parenting fail.