When you have MILLIONS of people choose to not participate or contribute to society in any way, AND depend on others for their survival, we all loose - full stop.
Yeah? With growing automation it is inevitable that human beings will have more free time to spend any way they please to. Some would travel to other planets but that does not mean that it should be imposed on everyone. As far as personal growth is concerned it may take a form of mandatory community service for everyone for one or two years. As human beings we do not have to stick to our herd mentality. In fact as humans we dare to imagine things differently.