[asciimov]

Sanitation, plenty of people handle the outsides of cups after they are washed before you drink from it.

If you have a compromised immune system, straws are important part of staying healthy.

[primordialsoup]

I have heard this argument from perfectly healthy people, and I couldn't really believe it, since there are just so many other touch points when you go to a restaurant.

If someone is immuno compromised I think this makes sense to extent.