Accessibility settings (auto jump/shield) should default to off

Auto jump and the upcoming auto shield (in java combat tests) are going to be "accessibility settings", yet they are going to be on by default. This does not make sense as a large majority of players do not play with these settings active, and as players who play on several versions or instances of Minecraft (for PVP, modding, etc), it becomes an annoying thing to have to configure each time you change versions. Also as an "accessibility setting", it makes no sense to begin with to have them enabled by default. For example, if there was an accessibility setting for color blindness and it was on by default, it would be very disruptive, yet auto jump and potentially auto shield cause such disruption.