That’s the thing - hardly anyone uses ‘cub’ as a tag as it’s not present as a default tag. Characters like Waku’s who are explicitly OK interacting with those [pretending to be] underage often use ‘ageplay’, as do some of those intending to be depicted as underage - an issue I brought up before. That’s probably why it wasn’t suggested as a solution, though it could be part of one (this is how IB essentially does it).