That makes also not sense.
There is a Boon of Durability, if you want that your tool last longer, take such ones and skill Durability too.
In my opinion repairing tools would affect much the player economy.
In a bad way.
You can‘t forge? Learn it!
There are nice guides for it, if i can forge, everyone can it.
Because i am usually very bad in figuring out best ways to be efficient.
But this one helped me much to understand how it works: [Guide] The Methodology to Forging Everything - UPDATED VERSION 2.0