Seeking clarity in my relationship

I've been in a relationship for 4 years, and now that I'm 22, my parents want me to get married within a year. I'm not ready for that. Yesterday, I brought this up while talking to my boyfriend, who is a year younger than me. He said he’s not ready to get married for another 5 years and that he won’t mention it to his parents until then. He also said that if I can’t convince my parents to wait, he’ll come and talk to them himself.

I asked if he could bring his parents to assure mine, but he said that would be difficult, and he would come alone. Without official assurance from his family, I don’t see how my parents would accept the situation. I’m also worried what if his parents don’t agree to our relationship after 5 years? What will my situation be then? If he’s not ready to discuss it with his parents now, how can I trust him enough to wait for 5 years?

Please advise, or let me know if I’m misunderstanding something.