In principle, I'm all for this. Practically, however: life always expands to take up all the space/resources available to it. The Star Trek economy needs either infinite resources (impossible) or population controls (distasteful) to be feasible. Otherwise at some point you'll get a virus such as a religious doctrine that says have as many kids as you can and suck up as many public resources as possible, and do nothing else with them, and we'll be right back at the edge of scarcity and collapse.
"Which is the greater danger - nuclear warfare or the population explosion? The latter absolutely! To bring about nuclear war, someone has to DO something; someone has to press a button. To bring about destruction by overcrowding, mass starvation, anarchy, the destruction of our most cherished values-there is no need to do anything. We need only do nothing except what comes naturally - and breed. And how easy it is to do nothing."
-- Isaac Asimov