Depends on the situation.
Our eyes have not evolved for night vision ... But if it's a clear sky and a full moon and we're not in a cave or surrounded by trees, we can see "well enough"
*Do we need light bulbs to see at night *Who invented light bulbs?
You could use candles, kerosene lamps, gas lamps, oil torch but light bulbs are a lot more convenient.
Yes, we need the light 💡.
Take a good look at a light bulb, Twenty years from now the kids will never see one. They will all be replaced by led's or some other device.
Moonlight, starlight, gaslight. But light bulbs specifically? They're on the way out, being surpassed by better options. In the meantime, if your light does fail you should get the family together in one room and have them raise their hands over their heads and wiggle them about. Why? Because many hands make light work.
If you want to know what would happen if we had no light you should read Isaac Asimov's short story, Nightfall. It's one of the most famous sci-fi stories ever written You can download a free copy as an eBook, or even as an audiobook.