Obviously, many people have children or grandchildren and would like to win a prize for them. That is completely understandable. However, any comp aimed specifically at a certain age group or hoping to attract entries only from that age group, should be avoided. Compers love to win, of course, but it would be a shame to gain the reputation of being so keen that we are happy to swipe a prize from under the very nose of a child!
Please use your judgement if and when entering children's comps.