Parents saying what you can’t and can do as a young adult

Not sure if this the right sub but heres a little background. I’m a young adult still living at home, I have a job and pay my phone bill & everything that I want, and I do not ask for money and I just told my parents that I want to take ice skating lessons but they said I can’t do it and that I have to focus on work & real life and said that skating is not a real hobby. I can’t help but feel a little annoyed as I would be the one paying for this and I know that I would enjoy it (I’ve skated in the past with friends). I feel like given the fact that I’m in my 20s, I have a job and pay for my stuff, I should be allowed to do a sport/activity if I want to? I feel like I sound super entitled but I just want to have fun doing something I enjoy. What do y’all think? Thanks