Folks, to make it clear, this is NOT about the extra room premium coach seats in the first rows of Coach class - or even those seats close to the front that allow you to exit the plane earlier.
This is about how AA blocks off all (or nearly all) the window and aisle seats in the back portion of the coach section on some flights so that families cannot select seats together anywhere on the plane in advance without paying extra.
And this certainly DOES affect other customers. I surely don't want an unaccompanied five year old sitting next to me.