unpopular opinion but not every idols have the ability to be a soloist
i just had this thought that not everyone can debut as a soloist. some idols shine brighter when they are in their respective groups. this is not a shade to anyone, it's just that some idols lack the stage presence to be on stage alone.
i get that fans would love to know idols personal musicality but i think its best for them to have solo songs in the groups albums, not a solo album for themselves.