Getting married with a 100 USD salary a month

You don’t need money to get married. You need courage.
If you live in a poor Asian country, you can manage around 100 dollars, but if it is Europe or America, you have to living on the streets.

Well money matters as you want to live for a daily needs.. If you married and having kids than have to earn more so you can give them good upbringing and all the stuffs they need.

As a single man in his 40s, I struggle to see any benefits of getting married. None. Nada. Zilch.

That said, the only advice I would give to a guy dying to get married on a $100 salary is to marry someone worth at least $1M. Preferably in their 80s. 70s is OK if you are ready to play a long game. And don't sign a prenup.