Make sure your young runners are equipped for every occasion with high-quality and supportive running gear. From shirts to shorts, get them prepared for all weather so they can enjoy their favourite sport all year round. Complete their running gear with some premium junior running shoes to make sure they have a complete running outfit that supports their activities. What age should children start running? Any child can run, it's a fun childhood activity most children enjoy, However, typically 1-4 year olds will mostly focus on running games, 5-6 year olds will run up to half a mile at most and 7-10 year olds should run no more than a mile.