I have 4 boys, but the one that loves Trainz is my 2 1/2 yr old, Joel. he is always sitting on my knee, likes to toot the horn and now knows the keys in DCC mode to start and stop. He is one smart cookie, Think he got more brains then I haver already LOL. He enjoys filing up my HDD with screenshots since he knows what key to press for that as well lil bugger!