In my experience, reading a solution and even understanding it doesn’t go very far in teaching you how to do something. I can look at calculus solutions all day but only when I actually try to solve them myself do I run into all kinds of roadblocks which is where the real learning happens.

You're right, but learning can take place when you need it. There is no real advantage to learning something ahead of time. The bottleneck is having awareness of what is out there to learn. You can't learn about what you don't know exists. Looking at calculus solutions all day should give a sense of what calculus can be used for, so that it is in your back pocket when the time you need it comes.

Well, at least it used to be the bottleneck. Nowadays you can just ask an LLM. For all their faults, they are really good at letting you know about what tools exist in out there in the world, surfacing more than you could ever come to know about even if all you did was read about what exists all day, every day.