If you're not yet pursuing a Hobby, your reason may be one or more of the following:

I don't have the time to maintain a Hobby. I don't have the money to maintain one. I think people will make fun of my Hobby. I don't know what Hobby to have. I think maintaining a Hobby is a waste of time money and energy. Hobbies are for folks who have nothing to do; I'm not one of them. I used to have a Hobby but now I'm too busy to maintain it. I'm too old or young to have a Hobby.

While your reasoning may be true "to some extent", it cannot be 100 percent true. These are all just your point of view. We've all heard of the example of one person describing a half glass of water as half full and the other, half...