glassmaker villager (renewable sand)

Sand is currently renewable via trading with a wandering trader, but this is lacking in accessibility. Not only is there not a 100% that a wandering trader will sell sand, you are limited only to 64 blocks of it per trader. I purpose that there should be a glassmaker villager. This villager sell 8 sand for 8 blocks of cobblestone and 1-8 emeralds. This would solve the issue of accessibility, as all you need to do is level the villager up to the level to get the trade and have an ample supply of emeralds and cobblestone.