That begs the question, doesn't everyone wear gloves to train in?

Notably there are things like Kyokushin (and other knockdown Karate perhaps?) that seem to train without gloves.

Obviously you normally remove the head as target if you're going with much intensity, but for better or worse it's pretty common in the Karate world to not use gloves.

I personally think there are merits and downsides to doing both things.