proficiency in crafting and brewing

in multiplayer modes players often distribute roles on their work. (like there's a miner , farmer, brewer, builder, etc) but there is a problem that except for some jobs( builder,explorer, farmer, redstone, etc) it can't be professionalized. which means a farmer can brew and a builder can craft. So if we add experience in crafting, the higher the crafting levels are the better tools come out. for example if you craft a wood pickaxe, between crafting level 1 player's and a level 5 player's pixaxe's durability and efficiency would be different. To level up in crafting is to get used to crafting that item(which means you have to craft that item several times). And the process is same with brewing. This feature can make jobs and profession in minecraft world and new minecraft players can contribute to other players by being an item crafter as a profession.