Item Repairing Rework & Keeping Mending (Removing Material Repair Costs)

I think one fairly simple way to solve this issue with mending and item repairing is to entirely remove material costs from repairing at an anvil and make the XP cost equivalent to what it costs to repair an item with mending based on how much durability is left on the item. This could make mending more of a useful QoL enchantment that gives you the benefits of repair on the go, not having to go to or carry and plop down an anvil, and the anvil wearing out over time with use, but perhaps would help players not feel a need to rush to getting mending. Removing material costs from repairing also entirely negates the issue of having to repair Netherite tools using Netherite ingots.

Thank you for your consideration!