Minecraft should add wooden and bronze armour, and obsidian tools.

It would be cool if the progression was a bit more inspired by reality.

Bronze is obvious, it was the age between copper and iron. But there are also examples of wooden armour out of Japan and obsidian tools out of Mesoamerica which I think would be cool to add.

The way I could see it implemented for the obsidian tools is instead of obsidian taking forever to break into a block you can break it into chunks that you can either collect a lot of to smelt into a block or you can take the shards and add them onto your wooden tool the same way you add netherite to diamond tools. By default the obsidian tools would be probably around copper level but have the sharpness enchant by default.

Most of this would be for flavour rather than major benefit. It would change how you get to the nether though since you no longer would need diamond to get obsidian, though maybe some alternative way of getting obsidian shards could be thought up. Also, the wood armour would have a different texture based on the wood you used.

Also, it would be cool to have a atlatl to throw spears.