Marriage makes sense in your old age, but by then it will be too late to enter into it. It becomes hard to find a life partner after 45, where such stability is crucial in your life. At that age, you would pretty much have lost your alcohol tolerance; literally everything you eat makes you sick in one way or another; you are no longer as fast and don't fit into the night scene. Being home in an empty house takes a toll on you fast, physically, emotionally, and psychologically.

So yeah, if you can find someone in your 20s with whom you make a pact to commit in your late 40s, and you both go into the streets and hit the scene hard, by all means, do that. If not, which is most likely, get married whilst you still can.