Is mechanized infantry worth the hassle?

NEPTUNE the great wrote:

I've only used motorized infantry, is mechanized infantry worth the hassle to back up your tanks?

if you have mech + tanks enemy can give damage to your units with only anti armour units

and you won't have your faster anti-infantry scout units , who cares anti air damage of mech units

it is not worth to spend research time

if you haven't last level of interceptor and motorized infantry you can't see enemy last level commandos

armored cars cant reveal them