I still don't see that much of an issue. Underage drinking in the US is much higher than in South Korea, even with greater restrictions on youth advertising. Various companies will use various celebrities to advertise their products. In the US, there is a major ad campaign using Marvel characters to advertise alcohol (I can't remember the brand), but there's no big uproar about that. This seems overblown.
In my opinion, the real advertising issue with K-pop idols isn't with alcohol but luxury brands. It's a huge problem with South Korean youth from everything that I've seen, and this is celebrated not just in Korea but among international fans as well.
Well it is mostly related to kdramas, but it is slowly lurking more and more into kpop world too!
Well you see Alcoholism in US blew up in 20th century, but in Korea it is blowing up recently! It is also due to the work culture of Korea too! But as many people describe kpop and kdramas as pure and innocent isn’t working, lol! If underage kdrama and kpop fans in Korea and in other lesser alcoholic countries will continue to watch that, they will eventually reach the level of US alcoholism.
About luxury brands, well everybody nowadays became materialistic even without of those advertisements! It is just how consumer- oriented capitalism works! Also, Korea is still not as developed as US, so people in developing countries will buy everything cause they have never tried that shiny thing before! But I would argue that Americans are more materialistic than Koreans in other ways
both are false, nonsensical statements 
