Master C Development - 3½ years old

Master C has grown up and his favourite colour is still yellow although elephant was less mentioned nowadays as he preferred to be a tiger, lion, leopard or cheetah - Fierce animals.

His favourite sentence now is "Why, daddy?". Why does the sun goes down? Why is there rain? Why the cat can jump very high? Why we will grow up?

I hope he does not get too traumatized by my attempts to explain those things...