@Gary I do take your point about being a "cyclist" and not a "rider", although my arse does
not stay planted on the saddle.

And yes I am still enjoying my "cycling".
I am definitely a lost cause according to your thinking, but my grandson is definitely a "rider". If he had been blessed with good terrain on his doorstep and a father that had any interest in MTB, then maybe we all would have heard the name of my grandson by now. Early on, I felt that I might be holding him back so I paid for one-on-one skills courses, two years apart. Unprompted, both instructors said he was the best for his age that they had ever come across. Sadly they spent more time checking him out than teaching him stuff that he couldn't already do. I won't make that mistake next time. Then he got diagnosed with Diabetes Type 1, and that slowed him down a bit while he and everyone else in the family adjusted to it. His momentum just went, his fitness went through the floor and his weight ballooned. But he seems to be back in the game now. Once this sodding pandemic is behind us it will be interesting to see how quickly he gets back up to speed.
You will be pleased to know that he is out on his bike every day just pissing about.
Sometimes he takes his younger sister with him, as she needs the exercise too. She has Type 1 Diabetes as well!! (What a bugger!) She is not even what I would call a "cyclist". She gets on a bike because it is there and rides it for fear of missing out. She shows no signs of actually enjoying it.

How can two siblings be so different?