You could get away with wearing a gator neck. Saw someone covering their face with a tissue once

Here it is mandatory but it's not really being inforced by the police. Up north you'll get arrested.
Some small business owners don't care, some will kick you out. In larger places like Walmart or Publix if you don't wear one you probably won't be able to get your stuff that you wanted to buy.
Honestly though I think its kinda getting in the way of our rights as Americans. I don't like that the government has so much control over us. And, it does go against out rights. I'll have to do more research to know exactly how though.
Also,
under the ADA, an employer may not ask about the existence, nature, or severity of a disability and may not conduct a medical examination until after the employer has made the applicant a conditional job offer.
Which also means that if you can't wear a mask due to, say, a lung issue. Masks restrict good breathing and fresh air. But, so many people just don't even know about this that it doesn't matter. You'll get kicked out anyways. This is the stuff that should be talked about in shcool. But it's not, for this exact reason.
In the beginning, before anyone knew much about the virus my dad would just go out with a face mask and gloves. Now, I think it would be like getting a bad cold for the average healthy person. If an older person were to get it they may pass. But, the same would have probably happened were they to get a cold. They could have passed the next year.
When you wear a face mask, you aren't getting fresh air which is a necessity. You're just breathing in the same air which is not good.
I hope this didn't get to political...