Eh. How will they survive? IIRC I heard some news about Isreal (they are doing great with vaccines apparently) and how they had 14.000 restaurants/bars but due to the pandemic 4000 already closed and that's such a huge blow.
Over here we're having them close at 20h for some time now and businesses are pissed because they lose cash. Can't imagine the scenario of being totally closed for half a year, jeez, that's so nuts.
Well, people employed in the industry do get unemployment cheques (which are higher than your regular unemployement benefits). A similar system is in place for the people who own the bars, restaurants, etc.
It's not a full paycheque, obviously, but it's not too bad either for most people.
Imo, that's the only thing that was handled correctly in Belgium. Thanks to our, in general, excellent social security, there was a system in place pretty much immediately to make sure people & companies did not go bankrupt. Not a perfect system (fraud is pretty easy for example), but definitely acceptable considering the circumstances.
Everything else in terms of handling the situation has been a complete disaster if you ask me.
We also do have a number of bar & restaurant owners who have decided to just quit & not open again once this thing is done. But I don't think there's a way to prevent that.