I sympathize with the parents but this is just how life goes. If you have kids, you’re going to be more occupied than people without kids since we all have limited time on this Earth. And of course your career will be negatively impacted. There are good things about having kids and bad things. This is one of those potential bad things. If you don’t want to deal with this possibility then simply don’t have kids.
If you don’t want to deal with this possibility then simply don’t have kids. This attitude -- which is pretty common in the US -- never fails to astound me. First, a lot of babies are not planned. Birth control failures happen or young people learn the hard way the facts of life because they fooled around ended up pregnant before they had a good idea of how things worked and some people are essentially brainwashed fr…
This advice that if if someone doesn't want to deal with the responsibilities of having children, then don't have children isn't going to result in the whole country's birth rate plummeting to zero. Demographic choices like these in a country of hundreds of millions don't change overnight. It'll be a continuation of the trend of developed countries' dropping birth rates. Humanity isn't in any danger of dying out [1].
While people of working age do support retirees, the idea that increasing population is an unqualified net good for society is a much more dubious proposal. Sustaining another human's life takes a lot of energy, on the order of hundreds of thousands of calories per day most of it from fossil fuels. Experiencing a declining population creates pressure to support retirees, but it's something Japan and European countries have been doing for a while now.
The rest of your comments seem to paint a very negative set of assumptions about childless people:
> ..there is no one to take care of us in our old age as our species dies out, having promoted the idea "You only live once and you should live for today and just indulge selfishly."
You assume that childless people are indulgent and live selfishly because...? Because they made different life decisions, you assume they selfish and indulgent?
> unless you want to follow up this policy with "Let's just start executing people who fall ill with anything that could require long term convalescence and, also, start executing people when they hit a certain age so we don't have to deal with the frailty of old age."
> (No, I am not being extremist. I'm really not.)
Is this a joke? Because I fail to see how anyone can convince themselves that this isn't an extremist view. You're literally trying to equate childlessness with extermination of the elderly, and execution of people with illnesses.
1. https://www.researchgate.net/figure/Estimated-human-populati...