Board Thread:Questions and Answers/@comment-26064296-20170918060518/@comment-33131437-20170919102947

I totally wonder about this for a long time too.. The quirk should be more difficult to stabilize or control when it goes farther and farther away from the first cultivator of the quirk... It is also obvious that midoriya can still handle 5% of the quirk... given that his body was hastily built/enhanced so it cannot still handle much of the quirk (also explains why his hands get injured everytime he focuses his quirk to a certain body part) so it can possibly mean that your stockpile is correct..

SO here is my conclusion why is it given to quirkless people like Midoriya(deku) and Toshinori(allmight). It was given to quirkless people because they have the feeling of being left out or the need of a quirk... also they have strong desire of being a hero regradless of their state(quirkless)... the quirk wouldn't be given to just a quirkless boy who doesn't want to be a hero right? so giving one for all to a quirkless person means he can push his limits to prove himself worthy.. I know I'm talking nonsense but...