I don't know if it happened after a system update or what, since I've never bothered to check for the option until recently. When I search for it in settings, the sounds settings come up, but I've navigated them thoroughly but there are no options even remotely mentioning vibrations.
I've had the same issue with my Samsung tab a7 lite. It's really frustrating - we just have the Sounds menu, not the Sounds and Vibration. Anyone found a way to enable it again?!
We recently did an update as well, so am wondering if it disappeared after that. Is there any way to revert back to a previous version to see if it reappears?