Rent is not double the mortgage.
Maybe the base mortgage payment, but you also have to pay for insurance, taxes, maintenance, utilities.
If you can’t get good terms on a mortgage you will also have a higher rate and PMI.
Yes poor people must pay more for the same house, and rent can be cheaper.
Edit- Hexbears: grow up, get a job, buy a calculator, and try to figure out why you are so wrong.
I owned a house in the past, and now I rent.