so no one here took the time to read and it was stated 2 times , so ill put it in bold.
The Sharingan's true power, in addition to the threat posed by its insight...*is its copying ability, that of making one's own any technique one sets eyes upon. Chakra, handseals... all the principles bringing the jutsu into existence will be recorded into the caster's memory in the blink of an eye, making its utilization possible.*Of course, the necessary volume of chakra and physical ability requirements must be met, but should one find themselves in some kind of dire situation, the Uchiha blood will demonstrate its accumulated experience, and never will those who have inherited it know any limits (tn: i.e even if you can't use the jutsu you've copied, the info will still prove most useful provided you can rub two brain cells together)!! so even if they cant use it they still coppy it