I have a large band that I use before my gym training to keep my shoulders warmed up - I do these dislocations methodically and the older powerlifting guys tried it once, only able to get their arms above their heads, couldn't go any further. Next week they all had a band of their own to work on their shoulder flexibility, it was adorable but also scary that they simply never noticed it until they tried that specific movement.
Good for you man. I’m stretching as I type on the floor. Running is great too. I’m 45 and feeling good because I run. I teach 8th grade math and got In my fastest 5k of the season this morning before my first day with students back. I didn’t take the time to stretch this morning though and wish I’d had. I expect I would have recovered faster. Thanks for mentioning the importance of stretching.