Blue Peter and Corsets?

This video is wrong in so many ways and I don't mean the memories it has brought back of pink trousers. Isn't Blue Peter a children's program? Why were they doing a segment on corsets and why does one of the male hosts take a photo for his "personal album," when there's an underage girl in the group of females he's photographing? It's just weird. I can't be alone in my confusion, therefore I share it with all of you.