UBI doesn’t stop people making more money. What it will do is help people be more mobile so they can find a job they like. The downside is people won’t spend 12 hours a day as an Amazon slave unless there is a financial reward commensurate to the employers demands.

Some people will participate simply because it is the only paying work available, some will participate because they need structure to their time.

Earning a wage is not comparable to earning a B in school. That B doesn’t put apples or oranges on the tables, earning a wage gives you both.