I think, certainly at a young age, how children play is influenced by how their parents live. If children live in a home with lots of TVs, computers etc with parents that are themselves always watching screens, playing computer games, surfing the net etc then the children will do the same. Put a child in a home where the TV and computer are seen as useful tools for living, like the car, but not much used by the parents who prefer books, music or some other activity and/or enjoy outdoor pursuits, whether it is following a sport or other planned activity or just walking and wildlife then the children will usually acquire similar pleasures. and play.
Most children who spend all their time in front of screens, often alone in their bedrooms, and rarely go out are just reflecting the lifestyles of their parents. The answer, and the blame, lies with the parents.