Are you required to wear a coat and tie to eat at Red Lobster?
No it's not a fancy restaurant.
I don't know
You can go dressed as bozo the clown and it's ok.
Yes, because every lobster has a funeral before being severed.
you can go with what ever you want
Not at all. My hubs and I eat there from time to time. Most of the people, including us are not that dressed up.
Red lobster is a casual restaurant. To be honest there are fewer and fewer restaurants that require a shirt and tie anymore, even among those classified as fine dining.