If the man's parents don't agree, how can I send a text message to the man's father to let him agree?

Dear, the man's parents are most worried about: you are still so young, and their son is so old. What they want is to get married and carry on the family line, not just be together. When you reach the legal age, your boyfriend will be 30 years old, and they are afraid that your boyfriend will delay you because he can't wait. Think about it, true love is nothing, so give up the uncertain feelings as soon as possible. You are still young, and you won't be sad for long. That is the reality. Age and region are really a problem.