Children under 6 don't need a ticket when accompanied by an adult (tempting as it is sometimes to just put them on a train

). I haven't had my ticket checked often, but a couple of times when it has happened, the conductor has, with great ceremony, pulled out a special ticket for my 2 year old to hold. It obviously doesn't mean anything, but my daughter has been thrilled. Maybe it's just to get them used to having a ticket and turn them into law abiding citizens...