" dedicate a few consecutive days (like weekends, or a Sunday, for example)" - who's parenting the kids? Note that about 86% of adults end up having kids.
In the grand scheme of life, if you have 2-3 kids on a typical age distribution, the years in which at least one needs to be taken care of the majority of the time is 10-15 years. You'll likely have 2-4x as much time where you're both lucid and not responsible for childcare.
Incidentally, that ~decade will likely be the most precious of your life; don't miss it. [1]
