Who an be a nudist?

The thought of going nude is exciting. being free and fresh air on your body.... hanging out with other nudists.......... but WHOA! what if your not buff, muscualar, not a gym ..buddy? what if you have a slight stomach , grey hair, dont feel as confident about being you amongst hot sexy people.... do people care? or os it only we who car what we feel others think? id love to be nude amongst other men but if they are good looking im not sure ...