Until you are like my family. I am almost 52, my hubby will be 61 this spring and our son is 16! Learning to drive, being a teenager. It's wonderful, but still kind of exhausting.
While I think it's great that we are financially better off, more patient and easier going than either of us were when we were younger, we do lack some of the energy younger parents would have. And it also tends to put you in the predicament of taking care of teens AND elderly parents at the same time.
Not to mention that the same year my son turns 21, my hubby will be 66 and ready to retire. That means having a kid who is barely (or not) launched as we enter hubby's retirement years.
But I still wouldn't trade it for the world. I just do NOT know how women do it when they are MY age and still have kindergarteners. More power to 'em!
Robin