Yes! I am imposing this to my 4 year old daughter, train up a child the way she should go as the saying goes. Last week, my daughter went for a vacay with my parents and guess what she gathered? ~ a certain amount of money (that includes paper bills and coins) out from the talent that she showcased to our family and relatives.
Can you imagine her telling everyone in the family that she will not going to spend it for herself because her mom is about to give birth in a week time? Wow! So proud of her! Yesterday she told me that she wanted also to save her money in the bank too. :)