Me too, but playing soccer is a lot more fun, even for one of the worst player in the world (myself), who can run the entire field during the whole game without ever receiving the ball. At least, I do my physical exercises.

Actually, it all comes down to whether you can see and appreciate the skills involved or not. I didn't realize that in the beginning, but now I do. You have to know that there's a lot of skill and practice involved in making the way the players pass the ball (in soccer/basketball/hockey), the decisions they make to distribute the ball (e.g., attack from the middle, from the side, one-two passes and sometimes, individual dribbling skills). These are all very difficult to do for any amateur (or even some professional) players, and it becomes to see it AND appreciate that only after you've played soccer (basketball, hockey, or any sports you name it) yourself. I could watch a soccer game without any goals being scored and yet still get enjoyment out of it.

Another somewhat related analogy would be that I was never trained in playing any musical instruments; I never am interested in learning how to play one myself. But when I see an orchestra playing a random classical music (i.e. the kind of music I personally find boring), I still appreciate that they are showing off skill that they practiced to acquire for many years.

I actually compare soccer and baseball a lot; it's useful for explaining the appeal of one sport to people who like the other. In both, it's not always clear what's going on unless you are familiar with the game. If you're familiar, though, and you understand the subtleties, there's truly a lot to do and to watch.

In both, scoring events are usually rare, which leads casual spectators to think that not much is happening most of the time. Because of the rarity of scoring events, though, it almost always feels like either team can still win. That's actually a huge appeal, and something often underestimated.

The similarities basically end there, but those two pieces are big parts of the appeal of each sport. It's not the case that someone who likes one will also like the other, but it helps people understand a little better.