Yes it's safe and OK to eat raw potatoes just like it's safe and OK to eat other raw vegetables.
Raw potatoes are much healthier for you than cooked potatoes are because when potatoes are raw they contain more vitamins, nutrients and minerals than cooked potatoes.
All vegetables including potatoes are best eaten raw when you want to get the health benefits.
Although raw potatoes can be harder to chew and digest than cooked potatoes for some people so they may need to be cooked.
But you certainly can cut up a raw potato or bite into a raw potato and eat the raw potato without cooking it.
It's best to wash the potato off before eating it though because it could contain pesticides if they were store bought.
But other than that raw potatoes are perfectly fine to eat.