Honesty opinions what do you all think would you say it was alright? My oldest son goes karate every Wednesday night his…

Honesty opinions what do you all think would you say it was alright? My oldest son goes karate every Wednesday night his doing so well and enjoys it I've made some good mummy friends from watching him learn. The thing is I want to join and learn karate I asked about adult lessons and the guy said I can join/start the same lessons as zakary. Do you think I should or would you be okay with younger kids from ages 7/12 years boys and girls I'm nervous as I'll be the oldest one there