Is it easier for dance teachers to stay single?

There’s a saying online: brothers talk about me and I cry to death; brothers marry me and I laugh to death.
Some dance students share that over the years they've interacted with quite a few dance teachers.
They’ve noticed a pretty heartbreaking phenomenon: many teachers with high looks and good figures are in their early 30s but still single.
He was curious and asked a few familiar teachers, and the answers were almost the same.
They’ve been on blind dates for years; as long as the other person has good conditions and normal values, once they hear the profession is a dance teacher, they usually politely back out.
My cousin is a dance teacher, 24 years old, single.
Last year, she went on a blind date with a guy who works for a state-owned enterprise and has good conditions. They got along well during the meeting, and the guy proactively asked for a second date.
On the third meeting, the guy asked her: Do you all wear pretty little during class?
My cousin was taken aback and said, We wear practice clothes, whatever is comfortable.
The guy asked again: When a male parent comes to pick up the kids, do they keep staring at you?
My cousin said she hadn’t noticed, busy with teaching.
The guy nodded, then after a moment asked: Among colleagues, is there anyone… you know, hooking up?
My cousin said most of her colleagues are women.
The guy was silent for a few seconds and said: Oh, that’s okay then.
In the end, it didn’t work out. The matchmaker later relayed that the guy’s words were: This girl is pretty nice, but her profession just doesn’t feel very stable.
My cousin was so angry she laughed and said, Should I switch careers and become an accountant? Are accountants stable?
Hearing this, it’s quite anxiety-inducing. Girls who can dance on campus are dazzling, so why do they become more easily stereotyped and misunderstood when they enter society as dance teachers?