Earlier quoted context omitted.
I wrote it in so nice way. I'm usually more harsh to people. Deciding not to have kids because it's too much of an effort is so selfish act. You're throwing away all the effort your ancestors put in to get to the point of you being alive.
Having kids is a far more selfish act than not. Our species and our planet would be way, way better off if about 9/10 of us elected not to reproduce for a few generations.
At < 2 replacement rate, the populations of Portugal, Spain, Greece, Cyprus, Italy, Hungary, Slovakia, Romania, Bulgaria just won't be around in a few generations. The cultural identity of Europe will disappear on present trends.