Protection aigainst rain? Whenever there's a light drizzle, I get waterdrops on the inside of my glasses.

I got corrective eye surgery cause glasses were an annoyance on everyday life. Can't see from some peripherals, weight on your nose and ears, annoying when you lay down, cuddle etc. They bump about, and fall off if you're active (such as parkour and flipping). Also forgetting or relying on them to see was always irritating, they fog up, smudge, etc. Just generally a hassle I did not want to deal with any longer. They also break, are expensive, and potentially need multiple pairs if sensitive to sunlight, have different prescriptions, or need safety glasses.

I'm sure they're fine for most people but they suuuuuucked in my case.

Contacts gives you full field of vision, and they don't get dirty. If you are lucky you only have to take them off and on for switching once per month and can sleep with them. I am one of those, and can buy the cheapest contacts too.

In other words, always good vision, with full FOV

I switched to contacts when I got a job where I am required to wear safety glasses. Contacts + the normal plastic glasses is just easier to deal with than having to get and replace prescription safety glasses.

When you get to -7 like me the limits of physics start to apply and the closer you can get the lens to the eyeball, the less distortion you have so you can still read text and stuff which is pretty hard with glasses.

Ahh, yes! But try opening an oven!

I have keratoconus, so unfortunately glasses aren't an option for me. I have to wear these rigid plastic contact lenses to correct for my corneas which bulge outwards kinda like little cones.

Peripheral vision mainly

Glasses are mildly inconvenient when it's cold, somewhat inconvenient when you have to wear headgear that don't take it into account, and very inconvenient when you have to move your head a lot or look down a lot. Anyway, I took the laser instead of the plastic bit that costs a lot and gets lost easily.

…and I keep wearing glasses anyway because the sun is still a thing that exists outside, anyway.

I reckon it's the cleaning.

I've never used contacts because the idea of touching my eye squicks me out (even if it's something meant to go there, just -- no.), but having your eyelids do all the cleaning and never having to worry about them getting dirty or scratched while using them is probably something a lot of people appreciate. (obviously you do still have to be careful with them when they're not in your eye, but they're much less likely than glasses to get dirty or scratched)

Me, I'm happy just using a microfiber cloth and being careful.

I agree that they are pretty great, but if you use VR headset, they are fucking annoying.