Renting the lands causes them to not get any profits because their landlords will be demanding large amount of money to pay for their lease on the land. This is evident in my country with a lot of farmers doing farm works in someone's land just to have something to eat for the day. They can't afford the risk because most farmers are illiterate and most people that try to help them are either using them for someone's agenda or they are being exploited, and if they take the risk that means that they are laying their families life on the line, a lot of farmers have been killed because they want some changes in their way of life.