What age should kids start learning how to write letters?

When the child is ready.When they have the eye hand coordination and fine motor skills to write. Writing is a process The child starts by scribbling and then lines etc

I taught preschool during my senior year of high school. I've noticed the children writing letters about 3-5 years old. Some may need assistance. Others may not. It all depends if the child has developed their fine motor skills.

Personally, i will say round about 3 yrs old but you can check out this website though: http://www.suite101.com/content/when-should-a-child-learn-to-write-a130733

well im not sure the avrage age but my neice and nephew are only 2 and they are learning how to spell and right letters even read the letters my neice who is ONLY 2 noes her abcs and how to count to 10 in english and spanish:)

I work at a preschool with kids 3 to 5 years old. the 3 year old should know their letters and alphabet but we don't expect them to know how to write them. at age 4 they should start writing their letters Capital and lower case. then age 5 they should be able to write and be able to say which letter is capital and lower case. hope i helped some!