Name change since family members know my username.
My DD is 14. She has picked up playing the guitar during quarantine (She could already play but has improved her skills by miles and is enjoying it lots!) and she enjoys singing it, too.
In no way stealth boasting, she is quite talented at singing for her age, control over her vibrato, brilliant pitch etc etc. I myself used to play in a small band and did gigs at a similar age so we sing together 
She visited her uncle (DH brother) yesterday and came home really happy, she told me she has amazing news - her uncle owns a 'nightclub' (not a nightclub but not sure what to call it!!) and he told her she can play there if she likes 
DD was over the moon, I told her it could be a good learning experience and knowing her she could do it! As I said I played myself as a teenager and honestly, why not? If it's something she enjoys then I think it could make her happy to bring entertainment to others with her voice!!
But then my DH just had to join in with the conversation and laugh at her
Saying 'Oh, (brothers name) is just having a laugh, he's joking, he doesn't actually want you to play there' and made her feel like shit and now my DD has gone up to her room embarrassed 
Rudeness aside, the fuck would any decent human being joke about that anyways? Does he want to bring her confidence down?
Aibu to think this was an unnecessary and rude comment from my DH?? 