How I know?

There’s a nightmare scenario if I ever heard one.

true! although wouldnt manual be walking on ones hands ?

You let the clutch up until the rims start to drop a tiny bit, at this point you can let off the brake and move your foot to the gas. You shouldn't move backwards as long as you are slow and feel for the engine to not stall

Well, it's just a trick you need to get the feeling for. Start one foot on the break, and other on the clutch. Let clutch go halfway, without stalling the car, and quickly move your right foot from brake to gas. Press on gas pedal, while releasing clutch. If you do it right, the car starts driving forward, even on a upwards hill. It takes practice, and every car feels different.

If you're on a really steep incline, you'll have to press both the brake and gas pedal at the same time using your right foot, while feathering the clutch with your left. I've heard this called the "heel toe" technique.

If your engine has enough torque or if the hill isn't steep enough, you can ignore this and just ease off the clutch while transitioning from the brake to gas.

I always stall it with those brake assist features. I'm coming off the clutch and the damn computer still has the brakes on, so it cuts out.

Y'all can keep your computers. I'm keeping my carburettors for now.

No, but my family hails from the Ozarks.

I haven't driven a whole lot of cars and none of them were old as dirt pickup trucks but I've seen enough where the idle gas was not enough to get the car rolling on an incline without stalling it. Sometimes you just need a good handbrake start

On flat ground, agreed. On a hill, my car just doesnt have the power to do that without some gas.