time doesn't move faster because we grow older

time moves faster because, as we grow older, we're accustomed to the experiences and our own daily routines
as kids, everything we experience is mostly new, so the time 'stretches'
if you were to travel to Antarctica now for a month, your time would be 'stretched', then a month later into the space/moon/Mars - your perception of time would stretch, then lets say you went to explore African wildlife for a month, or deep-sea diving/exploring - you get the point
time feels faster because we're used to the similar routines every day - if you were to override that with consistent novelty, time would feel as if you're a child again - because when you were a child, EVERYTHING was a novelty
I hope that helps people having an existential crisis - introduce novelty into your life, it will help