I think that it is highly commendable that this responsible parent and human being brought their kid to work and let them safely partake in his daily job. Anyone who feels that this was in any way not the right thing to do needs to learn a little about human development and the well being of a child. I would gladly fly in any airplane where this type of thing takes place. As a matter of fact I would enjoy it beyond belief. Broadcast it over the plane's intercom and make it even more of a "family" event. Can you imagine how good the world would be if everyone would take their kids to work and let them participate for simply one day a year? If understand kids in any way I'll bet that you would understand that this positive type of thing will change a kid for the better for the rest of their life. Of course safety is the number one priority but I'm positive that there was no harm or chance of any danger with this situation.
It honestly hurts me to think that this guy and child is going to get punished for a dad being a great parent and trying to make a difference in his kid's life.
Child doing the traffic control