If you live in generally canada you should earn at least 3500 in order to function normally.
Euro zone it's about 3500 EUR
In USA it's varied but If you live in los Angeles or new York it's a 7000$ + for sure
In UK London is more expensive but its about 4000 + for sure.
The goverment should restrict prices of rent for example If you rent out the Property goverment should check what could be the price of rent so to make sure person who rent will not use most of the work salary for rent
If we talking about countries like Norway where food price Are very high then Norway minimum wage should be atleast 100,000 NOK + it's about 10,000$ value.
Business who dont comply with minimum wage rules should get highest penalty and not allowed to operate anymore.
If person have more skills and experinces then salary should go up immediately otherwise penalty for company.
If we do this then instant paradize all around the world
I know that in some places here in the United States, there are certain rules about how much and how often landlords can raise the price of rent.. but I'm not sure this is something that is very wide spread throughout the United States. You mention Los Angeles and New York, but keep in mind those are pretty much the two most expensive cities in the United States. Not to mention is one's choice if they want to live in these insanely overpriced areas.
I think some of these proposal are good ideas, but at the end of the day you don't want to get too close too a communistic type state.