30 is easily young enough to learn to skate. i had my skate renaissance at 33 (started in ’75, skated all the way through to the 90s and then drifted out for a few years) and got way back into it for years, discovered downhill, sliding, slalom, even ended up helping build a park. best bit is when you are older and employed skateboards are cheap toys.
its a good time to skate now, there is so much variation. in ’99 it was all street street street and you really had to look to find anything that was’nt a popsicle.
my advice would be to go into it with open eyes, learn to skate everything. wear full pads and helmet, hip pads are good too.
my only warning, as you get older it takes longer to heal. i’m 46 now and don’t skate that much, pretty much a gentle roll around when i do and thats only when i’m out with my 9year old who has just discovered skating transitions and is full on. biggest problem is i get the fear, i know that if i damage myself i won’t be able to surf, and surfing to me is more important. does drive me mad that i can’t bust a rock n roll slide anymore though!