Why arent people reading
FAQs ????

This is in the designers commentary which was released about 12 months (!) ago.
Q: If any of your units are eligible to fight
in the Fight phase, can you choose for
them not to fight this turn? Also, if any of
your units charged in the Charge phase,
do they have to fight first in the Fight
phase, or can you choose for them to wait
until later in the phase?
A: All eligible units must fight in the Fight
phase; they cannot ‘pass’ and wait for
another phase. Additionally, a unit must
fight when it is its time to do so; it cannot
‘hold’ in order to fight later in the phase.
So if a unit charged in the preceding
Charge phase, it must fight before any
non-charging models in the Fight phase
(barring any related abilities).