Employment has an added benefit of being a social status, providing funds to live one's life, having structure and community.

Those without employment can achieve all those things, it's just much harder and most average people would crumble.

Remember the idea that if everyone had a universal basic income. They'll be an explosion of creativity and arts as now everyone is free and liberated. Except that isn't the case. People turn to harder and harder drugs to pass the time.