I understand fully that compulsory and guaranteed employment is both necessary and awesome in a socialist society in transition towards communism. But once communism has been fully achieved, would this compulsory employment still be a thing, especially since there is no currency that motivates many to work?
Even if everything is as automated as possible, someone needs to fix the broken machines. Teenagers will also probably break machines during their rebelious phase and make things interesting. Also, many people like feeling productive to society. If the job is not a total slog and the information about how to do it over the internet is available, I suppose stochastically most issues would be fixed by some volunteer. If it is a painfully dull and difficult thing to fix the society can reward the work with access to luxury goods or internet clout, or the state making the person a celebrated hero. There are all kinds of ways to motivate people.