I guess I was about 20 when I got prescription sunglasses and I couldn't live without them now either as I have incredibly sensitive eyes and need to wear sunglasses for driving. I have to spend a LOT of money on my glasses and I have to pay for the lenses thinning. It's annoying, but I have to do it. Recently, my lenses were so scratched that I needed new glasses.
These are my regular ones, I chose red because they're bright.
And these are my sunglasses. They're pink and chocolate brown and I liked the 50s vibe to them.