I used to think that the only way to enjoy your early 20s was through clubbing, drinking, exploring new things, traveling, and chasing girls

It's not just 20s, dude. Some people continue enjoying those all their lives.

Other people become very spiritual / religious from childhood / teenage, and spend the rest of their lives like that.

There is no one universal or correct way to live life. Every person's trajectory through life is their own. You do whatever floats your boat, and you don't need to take approval / validation from others about however you want to live your own life.

Everyone has their own choices and likes to enjoy. some people enjoy the way you mentioned, some people like to spend with their friends, travelling, spending time with family and friends, hobby, watching movies etc..

As some other comment mentioned that everyone has their own ways of enjoying. I go on bike rides every weekend.

Those were the activities for some people hormones were released. Also, western culture.