From day 1 line training if it was “my” sector i taxied and even manipulated the flight controls until taxi at the other end.
how b@##£( difficult can it be. Ok I couldn’t reject a take off until I was released onto the line!
Maybe this would not have been a good idea without a tiller on the rhs but seriously what’s the big deal.
On day one of line training I could have manouvered an aircraft as 360 at 100ft without breaking sweat, 20 plus years later I am not so sure as the system has degraded my skills significantly. Yes I know part of that is my fault......