When is it appropriate for any Pokemon to use STAB in place of coverage moves?

Question

All Pokémon can learn moves (most of them are STAB and some to cover for types, aka coverage).

In general, if a Pokémon doesn't have any or enough coverage for its type weaknesses, is it worth it to use STAB instead?

EDIT: With the exception of Pokémon with no attacking moves. (Cosmog/Cosmoem)

Answer 1

In a battle, I would say that it's smarter to use your STAB move if none of your other moves are super effective on the opponent unless your STAB move is resisted by the opponent. If all your moves are resisted by your opponent, you should use your STAB move because it would get 1/1 damage instead if 0.5/1. The same applies for if all of your moves are effective or super effective.

If you are talking more about moveset, here is another answer:
You can have at least 1 STAB move for each of your types (if you have 2) and 2 or 3 STAB coverage moves to cover for your weaknesses or types that you will face often. You don't always have to run so many STAB moves because they are there to be kind of like your signature moves because they hit harder than your other moves. It's pretty important too to have good coverage moves because they counterplay your opponent.

Comments

I guess I'll give it to you. It DID answer my question in general. Good work.

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If you are talking more about moveset, here is another answer:
You can have at least 1 STAB move for each of your types (if you have 2) and 2 or 3 STAB coverage moves to cover for your weaknesses or types that you will face often. You don't always have to run so many STAB moves because they are there to be kind of like your signature moves because they hit harder than your other moves. It's pretty important too to have good coverage moves because they counterplay your opponent.

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I just posted another answer. It probably would answer your question better

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Like Ferrothorn having both STAB moves for Grass and Steel respectively as well as 2 coverage moves (like Bulldoze to counter Fire and Aerial Ace to counter Fighting). Excellent job, man! Too bad I can only BA one of them.

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Thanks

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Converted into a comment because there's really no need for two answers by the same person to be on one question. I edited the second answer into the first answer.

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STAB powers up attacks by 3/2 times unless the user has adaptability, so where you said 1/1 damage, it should say 3/4 damage.