I believe knot-tying would be a great, life-long skill to have, especially being able to know which knots work best for different situations, like when the rope is thick and not very flexible or bendable.
I have lots of nylon rope and fishing line of various diameters, but don’t know where to begin and/or the best way to get started. My goal is to make this a long-term hobby and spend 1-2 hours per week improving my knot-tying knowledge, skill, and speed.
I think you’ll be fine if you’re interested in it. It helps to reinforce if you use the knowledge practically but I went through a phase where I learned a bunch of knots for climbing. Turns out you mostly use the same one or two knots for most things and most of what I learned wasn’t super practical. I still enjoyed it and occasionally find uses for some of the other knots outside of climbing. Most I still remember despite not using often though I admit I can’t quite recall how to tie a Monkey’s Fist properly….