^
Older people forming Idol groups is actually kinda cute.... you know, as long as they don't release PB's or calendars with bikini shots.
Not sure how you would explain the success of the 48 concept, I know part of their "thing" is the "idols you can talk to" bit. They hold a lot of handshake events and reading the member's profiles they go from incredibly ordinary to... well, unique. Maybe people like having a lot of options?