Everything fast food/drive thru needs a straw. The rest of the usage is mostly because everywhere got rid of actual teaspoons so you could stir things into you

Everything fast food/drive thru needs a straw. The rest of the usage is mostly because everywhere got rid of actual teaspoons so you could stir things into your drink. It's quite infuriating. In Austin, for example, most restaurants used to serve 32 oz(yeah that's a big-ass glass) of unsweetened(!) iced tea with a lime wedge, and it came with a long-ass teaspoon to go with it. Now it's far smaller glasses of drinks with enormous quantities of sugar already pre-blended--sometimes you can't even find iced tea anymore.