Time goes by faster when your day to day life is routine and homogenous. There's nothing to break up the monotony and every day just feels the same. If you move constantly, travel, and have lots of changes in your life, it will not rush by like that, because your brain has to constantly adapt to process new information and experiences.
A good analogy to this is sleeping. Why does dreamless sleep seem to go by instantly? It's because there's nothing in your conscious attention to process. Even if you drift into a "lower" state of wakefulness where you're not quite asleep, it will go by very fast. People experienced with meditation can probably attest to this as well, when you meditate for 2+ hrs it seems to go by very quickly if you do it right, because you're not letting yourself constantly get distracted by thoughts, emotions, and you're not paying attention to the passage of time.
This is part of the reason I have zero intention to ever buy a house, get married, or have kids. It basically guarantees a life of monotony. I've heard enough stories now of men in their 50s or 60s who spent their entire life working away just to wake up one day and realize their entire life passed them by and have nothing besides material wealth to show for it.