My 7yo daughter is deep into Kpop and totally got me hooked when she was 5. Her first concert was Blackpink at 6, and we saw Baby Monster a few weeks back. Additionally, not Kpop, but we took her to Atarashii Gakko last fall. My daughter has better taste than I do.
I know taste is subjective, but especially kpop, as a sort of hyper commercialized and entirely artificial girl/boyband commodity mass produced by corporations doesn’t strike me as “good taste” for any age group, especially kids, who are a lot less able to see beyond the shiny plastic coated surface.