People have jobs in Star Trek and there is no abundance of everything. For example not everyone gets its own spaceship and space fleet cadets even have teleporter _credits_ which they can use.
Where does all this money come from? Oh, sure, we can just tax billionaires. It's not as if anyone actually had to work 8am to 6pm, or whatever, those people were just suckers.
What a wakeup call you guys are in for ;)
[edit: Not you, parent, I'm referring to the OP who thinks "jobs" are a thing of the past]