Can u thank the person who decided to put auto sprint in Titanfall? Being a disabled gamer this makes the game much better!
Will Wright, via twitter
Holding requires much greater motor ability than pressing, particularly on buttons that require more strength to operate, such as L3/R3 (pushing in the sticks).
While some degree of holding may be unavoidable, for example holding a trigger to accelerate or fire an automatic weapon, there are often others, that could instead be activated by a simple toggle, such as using a scope or looking in your rear view mirror, or even happen automatically, such as sprinting.
Playing using a toggle is marginally slower than holding/releasing, and automatic offers less control, so ideally offer a setting for players to choose which option they would prefer to play with.