Many people tell us to let our children enjoy their childhood and not try and teach them reading or writing skills because, in their opinion, this is a sure way for children to grow up too quickly and miss the beauty of these innocent years.
I could not agree more up to one point. That is when the child actually pushes you to teach them stuff.
My 3 and a half years old niece is a tiny, little person with the brain of a true adult. She wants to learn absolutely everything and if you insist not helping her, driven by the above principle, the tantrums she pulls in a millisecond would definitely do the trick.
So we got her magnetic letters and she plays with them on the fridge's door every day. It keeps her happy while doing the educational part too. And since it's all just a game for her, she absorbs everything with the speed of a rocket, without feeling the burden we all experience in school years.
Plus our old fridge looks much cooler :)