well you become re-interested in it because your kids are. Same with sports, I can't watch sports on tv anymore, I don't follow teams anymore. Then again when kids come along they'll want to go to games, they'll listen to sports radio, read the sports section in the newspaper, watch tsn/espn/sportsnet etc. So you've then got be interested in it as well.
once the kids stop becoming interested in things, parents tend to stop doing things like going to see a baseball game with dad or something.