As someone who has been getting around 15,000 steps per week (according to my phone), this number seems to low. I sometimes pace around while on the phone for work (usually without my phone on me, so my true number is likely a little higher). Other than that, I walk very little. Based on my experience living this life, it’s not good. I have had a noticeable decrease is how steady I am on my feet, various pains from a lack of movement and activity, and it got to the point where I received a notification on my phone that I’m at high risk of falling sometime in the next year. That’s not a notification someone in their early 40s should get.
Maybe 15k steps is better than laying in a bed all day and never waking at all; I’ll buy that. However, it’s far from optimal and shouldn’t be anyone’s benchmark, assuming they have some base level of mobility to start with.
Only getting 15,000 steps per week requires an extremely sedentary lifestyle, one which can likely only be accomplished while working from home.