Our local muni allows it.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
Wear whatever you want, unless there's a dress code that states otherwise. I don't know when golfers got in the business of telling other grown adults what they can and can't wear. Golf is hard enough. You should at least be comfortable.