History is more or less bunk. It's tradition.

That might be true, and much that Henry Ford said still rings true. This is particularly so for kids: "It's tradition. We don't want tradition. We want to live in the present and the only history that is worth a tinker's damn is the history we make today." as published in Chicago Tribune in 1916. That I would say is a pretty natural state of mind and none the less so for kids.  Here are two more photos from Latitude 2010 that suggest one should never ever try and guess what music they might like...

Ear-protectors in place and rapt so of course this must be some child-friendly act? Nope, absolutely not... Crystal Castles!  On the other hand there is this.

Fairy-winged ones opining that this fuzzy-faced Californian band, Chief, is the new best thing in music. It is very good too but hardly revolutionary if one is old enough to have heard Crosby, Stills, Nash and Young: Laurel Canyon for a new generation?