Took BabyEagle flying first time when he was 3 months old, mother on board of course.
Since then I've taken him up many times, mostly brief flips but also a couple of 2 hour flights.
Now he is nearly eight. Unless we are travelling I only take him when he asks to go flying, just us two.
He sits RH, a cushion so he can see outside, and when in cruise is allowed hands on.
I always feel the responsability more when flying together, and never have him up front when flying a complex.
edited for spelling