This logic is a bit like having a young child die and saying “well her parents don’t have to pay for college now.”

Like…what the fuck man.

If you mean the gold guy on the horse when you first start, don’t fight him (yet). You can avoid him.

If you mean the first actual boss in the castle, you can get help from an npc or other players by using an item to see their “signs” on the ground and inviting them to your game.