Hmm, perhaps its all relative. I suspect the point may be that they had it easier than their parents' generation (albeit not in every family) and felt they had done well as a result. In contrast we were led to expect that, providing we worked hard, we could get certain things, by our parents and haven't been able to achieve that due to house prices etc.
Eg, as BelleDame says, only 5% of them went to uni, therefore they got pretty much the top 5% of jobs. We grew up believing that uni was what gave that 5% the success and went to uni along with 50% of our peers, only to find we didn't get the top jobs as there were not enough to go around.
Their parents had had to scrimp and save and so were careful and wanted to pass on their wealth to their kids, so they tended to get whatever their parents could afford to give. The baby boomers did better, in general, than their parents, so expect us to do the same and don't see why they should pass on an inheritance or help with a deposit on a home or whatever.
To be clear, I don't think that they owe us a living - and I don't think we should expect to receive financial help from our parents- I just think that they got more from the previous generation than they are passing on, and that very few of them in the media or my personal experience recognise how much their parents gave them.