Straws are useful for drinking lemon water, and maybe other drinks which have the wrong kind of acidity that can damage tooth enamel.
The straw can help to prevent the liquid from making contact with the teeth as you're drinking.
So, there's 2 different untested theories there, I am careless spreading around without having tested either of them myself, because I have unusually strong teeth, which is an uncommon but not rare thing.
Source: https://mtpak.coffee/2023/05/takeaway-coffee-cupsforever-che...
So what I do now is not even worry about the order, but when the drinks arrive I strain out all the ice, to stop the melting and dilution process. Unfortunately I still see an appalling amount of ice displacing the volume of beverage.
Also, I have a beard, and so a straw is the best thing to prevent milk or soda or whatever soaking into my facial hair.
Currently I have a vast stockpile of plastic straws, because I usually order two drinks but use one straw. Mostly, the only sustainable, crap straws are the ones I've purchased separately.
If I’m at a restaurant or home I rarely use one. Some cocktails at a bar also benefit similarly but others just a stirrer suffices for when it comes improperly mixed.
When bartending, they’re used to taste a drink if the bartender wants to ensure it tastes right before serving.
Also, "Boy Was Near Death After Metal Straw Pierced Throat, Brain Artery", https://www.today.com/health/health/metal-straw-punctures-th....
There are also accessibility reasons to need to use a straw. And some people prefer the taste of a drink with a straw.
I never felt this was a big effort. Is this like people driving automatic transmission that assume it's dangerous to drive stick because it's "distracting"? It's not distracting once you get used to it.
Most of these things if you do them often enough will not require any mental energy.
I'd argue you shouldn't be driving in those many situations (say, daily commute). But I'd rather a person's morning coffee be sucked than sipped behind the wheel.
Keeps my lips and areas around my mouth clean, so I don't waste a napkin.
Don't have to put my lips on the cup/glass, so more sanitary if eating/drinking out.
but you waste a straw instead. i don't see any net benefit wrt this particular aspect
Wait have you ever gotten an illness that was attributed to a rim of a beverage glass that wasn’t also present in the rest of the beverage?
but if i would take this consideration seriously then my conclusion would be to not consume anything at this place rather than assuming that the rim of a glass is the only place that is less likely to be clean.
I've seen this happen everywhere from the cheapest joint to the poshest of posh establishments that I view it as simple inevitability so long as humans are involved in serving.