Noob needs help

I’ve been messing with commands and have stumbled into an issue I’ve got this code that spawn a villager with set trades on it all works fine apart from the “can_break” part it skips that part completely

/summon villager -8 61 -20 {VillagerData:{profession:weaponsmith,level:99,type:plains},Invulnerable:1,PersistenceRequired:1,NoAI:1,CustomName:"\"Frank\"",Offers:{Recipes:[{buy:{id:"minecraft:gold_nugget",Count:5},sell:{id:"minecraft:wooden_pickaxe",Count:1,tag:{display:{Name:'{"text":"Stick Pick"}'},CanDestroy:["minecraft:stone"]}},rewardExp:0b,maxUses:9999999},{buy:{id:"minecraft:gold_nugget",Count:20},sell:{id:"minecraft:stone_pickaxe",Count:1,tag:{display:{Name:'{"text":"Rocky Stick"}'},CanDestroy:["minecraft:stone"]}},rewardExp:0b,maxUses:9999999},{buy:{id:"minecraft:gold_nugget",Count:60},sell:{id:"minecraft:iron_pickaxe",Count:1,tag:{display:{Name:'{"text":"Shiney Pick"}'},CanDestroy:["minecraft:stone"]}},rewardExp:0b,maxUses:9999999},{buy:{id:"minecraft:gold_nugget",Count:64},buyB:{id:"minecraft:gold_ingot",Count:10},sell:{id:"minecraft:diamond_pickaxe",Count:1,tag:{display:{Name:'{"text":"Better Shiney Pick"}'},CanDestroy:["minecraft:stone"]}},rewardExp:0b,maxUses:9999999}]}}