A human lifetime is obviously too short to learn to do everything well.
But many people waste a lot of the time they do have in their life -- playing mindless games, reading/watching absolute trash, surfing the web or any number of other absolutely useless activities.
It's very difficult to really dedicate yourself to getting better even at a single skill over many long years. There are always distractions and a lot of boredom and self-criticism to overcome. It's painful and hard, and many people just don't have the willpower to do it.
But many people waste a lot of the time they do have in their life -- playing mindless games, reading/watching absolute trash, surfing the web or any number of other absolutely useless activities.
It's very difficult to really dedicate yourself to getting better even at a single skill over many long years. There are always distractions and a lot of boredom and self-criticism to overcome. It's painful and hard, and many people just don't have the willpower to do it.