- Our volunteer workers are a crucial and vital part of the success of Kid's Market and Mom. Along with the advantage of shopping early, as a worker you will also enjoy the benefits of developing life long friendships. We welcome husbands to work and children are allowed to work beginning at the age of 10. Listed below are requirements and benefits. After reading this information, you can go here to sign up for Back to School Sale Worker's Hours to find out what hours are available. You can go to here to sign up for the Fall and Winter Sale Worker's Hours to find out what hours are available.