Should the poor living in the city (no house, no car and no guarantee to live with their parents) get married?

There is no clear answer to this. Different people have different opinions. Materially speaking, you shouldn't get married, because you have no house, no car and no security, so you can't give your wife a basic material life, but you still live with your parents. Marriage will increase the burden on parents, so it should be considered carefully.

On the other hand, in terms of affection and love, your wife may not mind your material poverty. She is willing to spend this life with you and create a better life, while your parents may prefer to have a grandson to play with.

Marriage is a major event in life. I think this problem should be discussed carefully with your parents and lovers and treated together.

I hope my answer is helpful to you.