In Ancient times, the ultimate measure of wealth was leisure time, the word for this time was SXOLI, whence comes our word school.
The connection is clear: free time is time to improve your well being, however you see fit.
Work Displacement allows participants to have some time (usually around an hour) to themselves while we do their work for them. "Work as Gift" frees people to study, read, talk on the phone, or have a coffee with friends. This is time that was given, it is "free".