Why do 4 year-old not take naps?

Our 4 year-old start transitioning towards a big-kid schedule, thus they normally do not take naps.

 

"I love Winchester because I get to see my friends every day! "

~ Massimo, Kindergarten

"Children desperately need to know - and to hear in ways they understand and remember - that they're loved and valued..." 

~ Paul Smally