I have two older sisters, and they have always been a role model for me. I have learned from there mistakes and seen what they have done well and it has made me a much better person. If there was this rule possible heroes wouldn't exist what if Leonardo di Vinci never existed or Gallelio it would make the world worse.
The world really needs a one child policy now because the world is overpopulated, and the environment is also crumbling terribly. The best way is to enforce a one child policy. Furthermore, the one child policy will benefit families by saving time, money, stress, and there will be no siblings rivalry.
Probably be better for it. I just don't think it's an option we can realistically apply to the current world. Still some space to expand yet, seek solutions. If I had children I would prefer to have more than one. Siblings were a supportive rather than negative influence in my family.
If 2 people = 1 offspring the population will be cut in half just by 1 generation! With fewer people to feed that also means fewer people to work jobs! NONE of your current problems will change! The only thing 1 child laws are good for is evil dictators that want less competition in the future. I plan on having no less than 5 kids and if you care about America's next generation YOU WILL TOO!
There is 2 people needed to make a child, If they only can make 1 child, it is 1/2. If there is 100 people on the Earth, the next generation it would be 50, then 25, then 12-13, and so on. Eventually there will be nothing left. It might save time, money, and stress, but it isn't worth eliminating the human race.