They know what breaks you're allowed when they make the schedule. I never skip breaks on purpose. I don't care about tgt that much. And the 15s have never been the reason I left something unfinished. The reason is usually understaffing. I can't do it all.
I also have shit joints. And now I'm starting to get that pain they talk about in Dr scholls commercials where it goes from the feet up to the lower back. The breaks are helpful. Health insurance would be more helpful lol, but yea, I'm not skipping a free break for a company that doesn't care about me. If you don't wanna take your breaks, that's fine for you, but the rest of us are avoiding burnout and hunger, doing a little socializing and resting our joints and eyes. Studies have shown that taking breaks is better for you.. And the company.
I like to watch something on my iPad when I'm not into whatever they're watching (I do Bob's Burgers and Adventure Time to keep it light) I used to sit outside for breaks. Idk why I stopped that. It was nice.