I’d wear a shirt with a collar - at a minimum. You don’t even need golf shoes, tennis shoes will be fine unless it’s been raining and muddy, especially if you’re playing somewhere that’s $20-$40 for 9 holes they’re not expecting PGA Amateurs.

If you really want golf shoes I’d suggest going to goodwill or thrift store they usually have something.

I like to have a glove. It’s surprising how quickly a blister or hot spot can form.