WHY OUTDOORS
Darcia Narvaez Ph.D.:
...Recent studies tell us why indoor play is detrimental to children’s growth.
Outdoors, a child learns on multiple levels with each new adventure (Burdette and Whitaker, 2005). With all of the imaginary castles, lands, creatures, the brain develops at a much faster rate than for those who play indoors. There are numerous effects. Not only do they become better learners, and do well in school, but they are more fun to be around (i.e. they make more friends)--everyone wants to play with the kid with the active imagination! Consequently, children will be much happier because, hey, they’re smart and they have a lot of friends. All of this comes from just playing outside; you can bake many loaves in the same oven....
https://www.psychologytoday.com/gb/blog/moral-landscapes/201404/whats-better-indoor-or-outdoor-play