There was an article the other day that said divorce rates for millennials is down a notable amount from baby boomers, but without the marriage rate lowering. One way of interpreting this is that baby boomers have more selfish tendencies than other generations, and millennials are realizing that their parents' ways (including divorce) are selfish, and learning from their parents mistakes. If this is true, then it's perfectly in character for a stereotypical boomer to complain about millennials more than their parents complained about them.