Am I rushing things?

My boyfriend and I met when we were both freshly coming out of long relationships (about 6 years with our ex’s). For the most part, we both pretty much broke up with our ex partners for the same reasons: freedoms, peace, growth. We each felt our old relationships were draining us and weren’t progressing after such a long time. We both also come from wealthy divorced families so I feel we’re able to understand each other on a level that most couples do not. Another thing is, our families love us together. & I’m not just saying that. My parents genuinely love him which is weird because I’ve never had my family want to be so involved with my love life. He says the same about his family. Especially since both our families hated our exs. We hardly ever fight as well & sort of share the same mindset. The thing is, we haven’t been together for long. Yesterday I overheard him say he was looking for an engagement ring on the phone with his cousin while I was in the restroom. It sounded very serious & we talk about our future together all the time. About buying a house and stuff.. I don’t feel like I’m rushing into anything cause I feel like I truly love this man & love how we’re able to relate on a level deeper than sex. But we are in our 20s and I know people tend to say “you haven’t lived yet”. I don’t feel like I would regret getting engaged to him, but will it always be like that? Any one regret getting married off young? Especially in their 20s?