The spread is quite wide. I got my first kid at 45 and now almost 50 working 75% to take care of two kids the rest of the time.
The flip side is that I have never been so focused during working hours as now. I’m getting quite much more done in six hours than I used to get done in eight or nine.
Yes I feel more productive than many of the younger, childless colleagues at work. In fact I really don't like going to the office due to people talking WAY too much. I have 8-9 hours and then I need to pick up my kid, not using those 8-9 hours to the fullest is something I simply have to avoid. And incidentally my least productive days are the in office days.
The flip side is that I have never been so focused during working hours as now. I’m getting quite much more done in six hours than I used to get done in eight or nine.