How early should children start learning typing?

Children can start basic keyboard familiarity at age 5-6 (recognizing letters, using both hands). Formal touch typing lessons are best introduced at age 7-8 (grades 2-3) when hand size is large enough to reach home row without stretching. At age 10+, most children can learn full touch typing effectively. Starting too early (before age 6) can frustrate and cause bad habits (hunt-and-peck). Use age-appropriate tools: for ages 5-7, apps like 'TypeKids' with large keys; ages 8-10, TypingClub; ages 11+, 10FastFingers. By middle school (age 12), students should aim for 30+ WPM to manage schoolwork.