My girlfriend taught me how to dive this past weekend. I'm 26. I had fully expected to go my entire life without learning how to dive, I guess because I unconsciously thought it was "too late" to learn, somehow. Now I'm wondering what other skills I never learned at the typical age and could just as easily learn now.

(if you're looking for object-level takeaways, just start out with kneeling dives - they're way easier and far less intimidating - then gradually try standing up more and more)