Straight from the intro of Idiocracy.
And say you have your 1st child in your 40s. What about 2nd and 3rd? It takes 2.1 children per woman to sustain a population. How many 50 year old parents with a 5 year old running around will have the energy for a second child?
And as for energy, the point is to commit to your fitness so that you'll be a very healthy and energetic 50 year old :)
You'll hit a population cliff, with all the pain associated with that metaphor.
Don't know, but it is probably also quite expensive.
People have different priorities in life. Just how much someone cares about career, financial, social success really feeds into how they'd weigh these points. I would say the author wants children, but desires money and success more.
The point about 'energetic 70 year olds' is cherry picking and really quite weak. Many, if not most, people experience serious physical decline beginning in their late 30s and certainly by the 40s - even with some attention to diet and exercise. I certainly have.
I do want money and success, but more than anything, I want to realize as many of my own dreams as possible, and also more time and space to invest in personal growth.
On fitness - you are right about 'most people' and I my point entirely is that you should resolve to be fit a fit 70 year old and work towards it. This decision might help you in doing so.
Would it be better to freeze eggs at 18 than 25? Is there a 'too early?'
Good luck with that attitude when your child is born and requires ALL your attention ALL the time.