do I have to go to work when....

Showing up to work in the toughest times makes an indelible mark on your employer’s view of you.

you don’t have to do anything. but if the place of your business is open, and you’re able to make it to work, then not going is just skipping work.

I agree with squirbel. If it’s not too dangerous and you’re not risking your life in a terrible way, then I’d go to work. I bet a lot of other people will skip and you’ll make a good impression on your boss.