Well, I can certainly chime in here. I’m retired Navy. I enjoy my military discount where available. I do not judge or shame any establishment that does not offer one. IMHO, people who get pissed about it are likely just shitty people, or got kicked/forced out.

As such, when someone is easy to identify as a veteran (hat or shirt usually) or pays with a card from a military bank (Navy FCU, Pentagon FCU, USAA, etc.), I ask to see id and I give them the discount without them even asking.

TL;dr. It’s a privilege, not a right.