It's a different world Colin.
You're more likely to see grown men nagging their kids to come to the game now.
We had few distractions when we were kids. We lived in poorly heated houses, didn't have a TV, and those who did only had two channels on a 12" screen. There was no football on other than cup finals, and watching Flash Gordon/The Lone Ranger at the local fleapit on a Saturday morning was the highlight of most weeks.
Kids have easy access to an almost infinite number of tech items, 60" TVs, wall to wall sports, films, games... use of most of which will be shared with parents.
Despite all the hype around it, actually attending a football match is nowhere near as attractive to children as playing computer games.
Having raised two sons over the last 30 years, my own experience is that only one of them still has any interest in watching football. Furthermore, very few of their old schoolfriends have any more than a passing interest in football.
My youngest lad has been a season card holder for years... at my expense. He couldn't afford one on his own money and has far more important things to spend on.
In effect, if I don't go to the games, he won't go either. When I stop, it's two seats up for grabs, as he'll most likely just watch games via TV and streams.
The thing is that kids grow out of interests quickly when something new appears. They're excited and overwhelmed when they first go to a match but that doesn't last for ever. They get fed up and distracted, no matter how much the parent tries to keep them on the game.
Kids get more mental stimulation nowadays. The excitement of a football match can't compete with fast moving computer games.
if I had a quid for every child I've seen playing on a mobile phone throughout matches, I'd be a Tunnel Club regular.