I think it depends where you live. Ds has never been into it, because we're not. As football is played and watched both in real life and online here and ds is of a more imaginative bent, he has always struggled to have conversations. If kids aren't playing it, they're talking about it.
He has lots of varied activities, but all the kids in school want to talk about... is football. The football kids meet up outside school.. to play football. Ds isn't invited, becausehe hasn't been playing it for 8 years or so. School does football in PE most of the year.
Once he gets to 6th form, he'll be OK. It's just hard to join in without football currency.