Etiquette for wine and beer glasses

I personally don't think this is okay, what if they wanted to switch up from red to white or the other way around you'd make them use the same glass? or if they want a different brand of beer you're better off going to costco and buying disposable cups then making someone use the same glass all night.

I disagree with PPs. There is nothing wrong with asking your guests to reuse their glasses, and I've attended weddings where they did. Just put up a little sign that says "your glass for the night, for whatever tastes right." I would suggest having it at the bar where the glasses will be displayed, BUT if you plan to have the glasses on the tables then I'd put mini signs on each table or a card inside the glasses.

I usually always reuse my glass when possible, mostly because I do not like waste. That being said, if I would like to switch drinks, I would want a new glass. I would suggest requesting guests reuse their glass with a small sign at your bar, but also ordering a few extra for those who wish to switch things up. So if you have 50 guests drinking alcohol, maybe order 75-80 glasses. Having the wait staff quickly wash and restock the glasses is also a great idea.

We are doing all disposable cups/plates/flatware. They will be of good quality, but my wedding is expensive enough without having to rent glass & real china. I personally don't see anything wrong with red solo cups if that is what y'all wanted to do, lol. Like you said, y'all are down to earth so y'all should let your wedding reflect that.