Why are mature/sexy concepts no longer prevalent in Kpop?

well let's see, most idols are way younger now, and are marketed towards teenagers now and not young adults/adults, this is mostly for girl groups as they are actually marketed towards other girls and not solely men. for boy groups, the "sexy" sound doesn't sell for them, everything is about teen crush.

well it would be jarring if groups with one concept suddenly did a sexy one with no warning.

generally i think sexy concepts aren't seen well now, like they're taking advantage of the members. some sexy concept group members have come forward to talk about how their concept was forced on them and how uncomfortable they were with it.

and it seems like kpop just isn't incredibly popular with the gp anymore, and hasn't been for a few years at least, so a group's target audience is going to be kids and teenagers and not adults. it would be weird to promote a group with a very sexy image to a bunch of children. the groups debuting are young too, some of them aren't even considered legal adults in sk yet or are literal teenagers, so it would be wildly inappropriate for them to do a sexy concept.

idk. it seems like there's a lot of reasons. there could always be a sexy kpop era in the future

Because nowadays most idols are underage

I think kbs bans also helped killing it

22 KPop Dances Banned by KBS for Being Too Sexy

KPop Dances Banned by KBS for Being Too Sexy,Top Sexy Kpop Songs,Sexy Kpop Dances,Kpop Dances banned for being sexy,Hot Kpop Songs

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they're mostly targetting teenagers and kids more now, esp intl fans so they're playing it as safe as possible

the days of targetting korean GP are long gone

I've been wondering about that too.

Sexy has been a main theme in US pop for decades, and with K-pop going global more and more, I'd have expected the sexy concept to re-emerge and rise too.

Maybe it just needs 1 or 2 groups that'll be very successful with such a concept to become the new torchbearers and rolemodels for others to follow, like when Sistar popularized the fun sexy concept and SNSD did for the cute/bright concept.

Do these count as sexy concepts?

Bang Chan, Lee Know "Drive" | [Stray Kids : SKZ-PLAYER] - YouTube

Red Velvet - IRENE & SEULGI 'Monster' MV - YouTube

Stray Kids "강박 (방찬, 현진)” Video - YouTube

That being said, I do understand your point. I don't mind it since I am not super into the sexy concept myself, but I can see the appeal. As others have said, people may be uncomfortable or have younger idols. Also, K-Pop goes through a lot of phases (cute phase, retro phase, girl crush phase and so on). I'm sure it'll cycle back around to a sexy era sometime, don't give up hope if that's what you want. In the meantime, there are still older sexy songs you can listen to, as well as a few more recent ones if you know where to look. Have a great day/night!