My oldest is a *** **** queefs fan. No ****. He is a 22 year old man now, and believe it or not we watch the games together. He takes way more crap from me than I do from him, ultimately it's just football. You will find that you have just as much to talk about, it's just different. Have fun with it.
For perspective, when I first saw him Sunday morning -- I loudly exclaimed it was woodshed whooping day and that he should start smacking his own butt now so it will not sting as bad later. Offered him half a tube of chapstick later to pre-treat his impending butt chap.
It's all good. Family first, the rest is just details man.