That is the stats for parents. By age of 6 you will have spent about 50% of your time with them. By age of 12 it is 75% and 20 it is 90%+.

As they gain independence, you have less time with them but it is also considered higher quality time.

And yes, 10 years is short. 2016 feels like no time compared with today.

Sometimes more, sometimes less. Either way, those days are the most precious time you will have.

If you’re lucky, sometimes you get a few bonus days sprinkled in later on as well. My oldest just came back from college for summer. I got to spend an evening sorting/assembling the border of a massive puzzle, listening to their 90s music playlist, and sharing some fancy whiskies I like.