When will be a good time to start teaching toddlers to write?

Toddlers writing: I recommend checking out a free app called "On Kid Media". It is good place to fine age appropriate learning games and it is for all ages. Make sure your child is always learning when using an iPhone or iPad, as these days children want a little scene time, but make it short and educational. Buy toys that have letters that can be moved on a magnetic board, large enough not to choke on.Make it fun