Well, my vision has been crap for basically my entire life. I got glasses at age six, so let me start off by saying, "screw you and your perfect eyesight."
That said, age related presbyopia typically begins in the early to mid forties, so you're right on track to start noticing difficulty with near vision. It's generally not much of an issue, you just get non-prescription reading glasses for when you need to see things up close, and they're available basically everywhere for cheap. You don't typically need to wear them for anything else.
You really should get an eye exam, though, just to confirm that there are no other issues affecting your eyes. Changes in eyesight are sometimes an early warning sign for other health conditions, so it's a good idea to get regular checkups (but you already knew that, I'm sure).
