It all just really depends on how you look at it, bb. If you think about the timeline, John didn't even realize he had a son until Sam was roughly 19? Basically, as other people have stated, John was trying to do right by this son; he realized that he had failed as father where Sam and Dean were concerned, and he didn't want to make that same mistake with Adam.

The same goes for me as well, even if I have been catching some serious flack from Sam!Girls because of it. And what's really sad is the fact that I've actually been defending Sam.

NEXT WEEK. OMFG, NEXT WEEK: "How do you guard your guardian angel?"