Going Strawless

I am starting a new job at a hotel with three outlets.  The company is very interested in being strawless.  I'm very on board with this for all of the earth-friendly reasons. Do any of you also run a strawless program?  What is your advice on things like:

Negative Guest Feedback

Bartenders needing to straw-test cocktails

Staff training without straws

Do you suffer heavy losses if you use metal straws?

Also, how many restaurants do you know of in your market that are strawless?