How can I prevent players from having a specific item in their inventory?

Question

My brother has a problem with hooking people with fishing rods instead of focusing on survival. I know about the /clear command, but command blocks are only active when the chunk they're in is loaded, and I'm afraid that he'll go past that to get a fishing rod and start it up again. Since Minecraft is basically infinite, I can't keep placing command blocks whenever he moves away from one.
Is there a mod, command, etc. that can outright prohibit certain items from players' inventories no matter where they are in Minecraft?

HolyBlackCat · Accepted Answer

You don't need mods. Spawn chunks are always loaded, put your command block there.

randomuser922 · Answer

Alternate Method: Use a datapack to run the /clear command. This works since datapack functions are always loaded, no matter where you are in the world. You can just reference a function in the minecraft function tag tick, and in the function add

clear <selector> <item> <count>

This will always clear x item(s), from y player(s), no matter where you are.

How can I prevent players from having a specific item in their inventory?

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