A player in our group has opted out of combat entirely and gotten multiple ranks in Tinkerer as an Outlaw Tech and has decided that he wants to use Tinkerer to upgrade other player's items.
I interpret the talent as meant to improve yourself and your gear but RAW it does not exclude other PCs gear. As he wanted to do that I informed him that as I felt this way about the talent's purpose that if he chose to upgrade other players gear that item would have to as per RAW be lost or damaged not just replaced with a better item later meaning that barring a narrative event he would not be able to reapply Tinkerer ranks for items owned by other players. He decided that it he was fully able to destroy an item of his own volition in that case and continue as intended and I renewed my objection and told him that would not be an option.
Am I completely off base on this?