The Assertion That We're Hopeless and Forever Incapable Of Everything
It's infuriating how people have this weird need to try to convince us that we'll never be good at things. I even had someone try to convince me to quit longsword even though she admitted i look cool doing it because i "won't progress like everyone else and will get frustrated". Had someone say that about Muay Thai too, but he wasn't as like, insistent on it and didn't tell me to quit and was more open to being wrong. These both happened recently but I've heard this in every sport but pole (I guess I'm allowed to do sports as long as I'm naked enough!)
So, the only way to avoid this is to be shockingly like, prodigy-good from the get-go, which is an unrealistic expectation. It's normal to be allowed to suck at the beginning and learn over time. But we don't get that luxury and i'm so tired of constantly arguing with people over my right to be there just based on their need to body shame (make no mistake, that's exactly what this is).
Don't EVER. EVER! listen to these people. Don't even focus too much on proving them wrong. And don't let them try to put some sort of concern-trolling spin on it to make themselves feel better. Just shut the shit down and call it out for what it is. I hate that we have to fight harder than everyone else for the right to live our lives and do things we love, but we gotta be ready to do it and never let anyone shame us out of things no matter how unfair or discouraging it feels.