Yes, I think that’s the important distinction. It’s all about whether or not you’re cooperating with others to secure the goal, or working by yourself. In all the sports I’ve described above—you are not cooperating with others to achieve the same goal—except for the more nebulous “have fun” goal :)
The fact that others can be involved while you practice is a secondary matter—that only concerns you if you literally want to be by yourself… which as you say—is not likely to be the case.
Yes, I think that’s the important distinction. It’s all about whether or not you’re cooperating with others to secure the goal, or working by yourself. In all the sports I’ve described above—you are not cooperating with others to achieve the same goal—except for the more nebulous “have fun” goal :)
The fact that others can be involved while you practice is a secondary matter—that only concerns you if you literally want to be by yourself… which as you say—is not likely to be the case.