My custom mob can't be tamed?

The item is for breeding not for taming

1. Make a new procedure call it whatever (TameEntityName)
2. Set the Trigger to Player right clicks on entity
3. Make 3 nestled if statements
4. Set the first one to: If is Event/Target entiy (sub)type of (EntityName) do
5. Set the second one to: If Item in Main hand = (TamingItem) do
6. Add a Remove 1 item from source entity main inventory in this If statement
7. Under the remove item, set the third if statement to: If rand <= (Chance to Tame)
8. Inside this do statement: Tame event/target entity by source entity

I will post an example I made mirroring taming a wolf. In my example I used fractions for the chance to tame but you can use decimals as well, but wolves have a 1/3 chance of being tamed by using a bone.

The same can be done with Item Tags to use multiple items as the taming item.

Optionally you can add particle effects under the Tame Entity line

I messed up oops do this

Also add an if statement that checks if the entity is tamed already