I do too, but in a large amount of cases the skills I want to learn in my own time often only tangentially relate to the skills I maybe should acquire to become a better worker at my current job. Unrelated stuff like painting, modeling and playing an instrument. Most of it is still software related, but not specifically to my job. Getting that out of your head from time to time seems to help. Of course there are compromises, but certainly not most of the time.

If companies want efficient and capable workers, they have to be willing to train themselves. We are < 500 people and are currently building a training center just for that purpose (not software focused). Granted, a culture where job hopping is common, that can come at a steep price.