Slowpoke,

Video camera's need to be mounted in a suitable mount and can't be held by a passenger, you might get away with it for a lap or two, but the marshalls will probably spot it, as they look for cameras, windows open, faults etc while you pass them.
not sure on age limit at Croft, but most circuits are upping the age of passengers as a matter of precaution, liability etc. hope it is only 12, as my youngest was dying to get out with me at natday, but they wouldn't let him, they even tried to evict him from the paddock! yes i can understand the pit wall, but when he is with me in the paddock he was always near me or in my van getting suff for my servicing/rebuilding sessions........... he wasn't running about like a nutter or bothering any one else,

hope to see you there,

cheers..........Ken