How to persuade my girlfriend to get married in a simpler way?

If you want to persuade your girlfriend to get married in a simpler way, let her think for you from your point of view, because you two will live together in the future. Spend too much money when you get married, and you will have a hard time together in the future. If you spend all your money, you will borrow some debts and pay them back when you get married, and life will be hard. You should tell him this and tell him not to spend too much money in his later life.