Not the parent, but some simply prefer walking as an activity, and aren't concerned about optimizing how much distance is squeezed into a unit of time. A long, slow walk provides plenty of meaningful benefits that running and jogging may not.
Additionally, for people who experience joint issues, I'm sure the risks aren't at all overstated.
That's definitely an important point to be mindful of.
I was also attempting to target those of us who simply enjoy the process and outcomes of a walk, and don't get the same benefits from running or jogging. When I run or jog, which is rare because I detest it (but love spending serious time lifting and training other ways), I'm always focused on my
body, on pushing myself, on my breathing, etc.
When I walk, I can go forever and forget about my body. I get lost in thinking, reflecting, processing, etc. Walking is pure joy. Sure, it has positive physical effects. But I particularly seek the peace of mind that comes from going on walks. It's something I enjoy so much, I often pick my travel destinations based on how much walking I can do while exploring a new place. Walking has long been almost like meditation for me.
Even jogging eliminates most of the (overstated) health risks of consistent running (e.g. joint issues).