[egypturnash]

> Can anyone explain to me why copy/paste tools are different between AI/PS?

Because about thirty years ago, someone decided that Photoshop's copy and paste should work one way, and someone working on Illustrator decided they should work another way. They were not even at the same company back then. Now there are people who have those shortcuts carved into their muscle memory, and would holler bloody murder if it was changed. (Or just emit a very loud WTF?!? and hit up the key shortcuts panel to change them back to what they should be.)