I was playing rec league until I was 51. Our guys kids in HS and college started playing with us the last few years and…yeah…can’t move like that anymore.
Same thing when I’m sparring juniors in taekwondo. I definitely can’t move with a teenager’s speed, but I can hold my own due to patience and experience.
At least until they get enough experience and learn not to overcommit or bite on my fakes. Once they’ve figured that out, my ass is grass.