Should Apple Watch SE have a case?

Most of you who read my idiotic questions probably know that I recently bought an Apple Watch SE (from 2022 if that matters). I did a little reading and discovered that the ION-X display of the Apple Watch SE is more prone to scratching than the sapphire crystal display of the Series 8. I was wondering if any of you would recommend buying a case for my Apple Watch. If not, then what objects should I keep it away from?

Thanks,

Me