Jane10 I think it is lazy parenting. A parents role is to prepare and teach their children to go out into the world and discover new things. Even a car journey can become a fun learning experience, counting different colour cars, looking for fire engines etc.
Every day chores can be made fun, counting goods in and out of trolleys, letter magnets on fridges. Screen time can be used as a learning tool.
I think some parents use tv and screens as babysitters, and to keep them out of the way. We do monitor screen time with our GC on 'our watch' and adhere to the guidelines set by their parents. I also limit my time on iPad and iPhone whilst around GC.