Answer:
Yes, but you have to follow them even if you don't have a weak immune system.
Explanation:
Many people don't wear masks which makes the chances of getting Corona increase dramatically. However, if you are wearing a mask, your chances shouldn't be that high since you have some protection, just make sure it covers your mouth and nose. I am so tired of wearing them though and sometimes I forget to take it off.
Answer:
It should be left to state control because, its at a state level. a state level such as your local police , fire fighters , mayors etc. if it was brought to national control it would be chaos as national control is every state in the US.
sorry im kinda busy so i cant answer as good as i want to but it should be left to state control.