Keeping the control backward, wouldn't that mean that the aircraft could get off the ground even at a lower speed
Don't think of the stick being held back as a "fixed" idea. As airspeed increases you can both see and feel the attitude of the nose beginning to rise. From that point you can "fly" the attitude by small smooth movements - with experience this can be fined tuned remarkably well. Thus as you take off in the Robin you would start with the stick fully aft then move it slightly forward as the nose becomes light then, after lift-off, move it slightly further forward to increase speed to the climb speed.....