The only thing I'll add is that you never know what people are going through. Both of my children have pretty intense ADHD, and when I went through my divorce I definitely leaned into too much screen time for a while. It wasn't permanent though, and I managed to get back closer to the ideal you speak of (but as a single parent, it took a lot of processing of guilt to find a balance that worked).
I've decided it's safer to just never judge, that parent you see pushing the toddler around in the cart might indeed be a terrible parent, or they might be going through grief and at their breaking point.
I've decided it's safer to just never judge, that parent you see pushing the toddler around in the cart might indeed be a terrible parent, or they might be going through grief and at their breaking point.