It just shows a particular social dynamic that folks can relate to. That's all. There is nothing empowering about growing up in a broken home.
I would say that Boyhood actually promotes groupthink. Everybody was so middle of the road. There was nothing that was out of the ordinary.
I thought the mom was kinda self absorbed.

Were Mason and Samantha well adjusted? Samantha was kinda mouthy and Mason was painting his fingernails. lol You see this behavior among kids in the ghetto that were mostly raised by single moms,

oooooooh i was not supposed to say that.

Boyhood is an entertaining film. If you can relate to some of the situations presented in the movie fine. But don't make the mistake of thinking it is positive or enlightening because it is not.