I find it strange that I'm afraid of what I will be perceived as if I did the things I found no fault in in my early twenties. Tattoos, dying my hair, wearing t shirts from punk shows, still going to shows and doing stage dives.
You getting your first tattoo at late 20s early 30s? helps me manage my comfort of discomfort. There's few tattoos that have rolled around in head I wouldn't mind doing. 31 isn't too late to start getting tattooed again.