It isn't possible to judge risk for past decisions. Everyone has to make decisions based upon their risk-appetite and knowledge at the time of the decision.

If Bitcoin had died, you would be patting yourself on the back right now. 

 Some people are also living in some dodgy rentals or near dangerous people or subpar infrastructure, etc. and that is a risk that has to be factored in. 

 "Some people" being me, of course. 😂

Not every market has quality rentals in safe neighborhoods.
Or rents are skyrocketing.