I have no desire to go back to school, even part time, since it is a lot of work, I already have a job to occupy my time, and I am old and just want to retire. Yet I love to learn. I watch a lot of educational YouTubes on science and history.
Where I work, if people want an advanced degree, they often will support the effort with time and money, as long as you stay a while. I never took advantage of it, but did take night classes early in my career to fill in some gaps in my knowledge. It was all free to me, except commuting to class after work was always a pain.