Consumers and Reusable Food Containers

When I bought a bubble tea yesterday, I also acquired a plastic cup, a plastic seal covering the top, and a plastic straw sticking out of it. Once I finished the drink, all that plastic was thrown away.

Does it have to be this way?

As of today I can buy a coffee at a Starbucks and use a travel mug I brought from home.

I’m allowed use my own bags for the produce I buy at the farmer’s market, or the bulk bins at the grocery store.

Though I’ve never done it, I can’t imagine there being an issue of putting leftover food from a restaurant meal into Tupperware I brought myself.

Would a place that sells bubble teas allow a customers to supply their own reusable cups and straws? Definitely worth a question.