Good for you! I’ve always worn one on our holidays abroad (remember them?). There are lots of high waisted bottoms for those with a tummy to hide, or let it hang like men do! Honesty if you feel comfortable in one go for it!
I think it’s great if you’ve got skin that tans. I’d feel safer in a burkini because my Celtic skin burns to a crisp if exposed, and I’m careful as my mother has had lots of bcc’s. I don’t think age should be any barrier to what we want to wear if we are happy with it.