no T&G:
because on pre-1984 models the gear switch is on the right and flaps on the left, on post-1984 models gear is left and flaps are on the right.
During touch and goes, a lot of things happen while traveling down the runway at high speed, usually flaps are fully down and the pilot will be in a hurry to retract them for the next take-off..
If the gear handle is moved to the up position, and the squat switch on the gear is not working then the gear motor starts to turn, it takes about three turns before the nose gear unlocks and can be pushed in with two fingers (when on jacks). Full 50 turns from fully down to fully up takes between 4 and 8 seconds depending on model year, so you can calculate how many seconds for 3 turns before the nose gear is unlocked.
Never touch anything on the runway except the flight controls and throttle, leave flaps and all other switches until clear of runway.
BPPP forbids T&G during training and for good reason. Too many avoidable and expensive gear mishaps.