Having spend several nights around Tekapo, which is one of the largest in the world. I would definitely say that it's worth trying to spend a night in one. The view of the night sky is stunning. You can see the Milky Way with the naked eye, and the sheer number of stars is magnificent.
Note that you can see the Milky Way with naked eyes also outside of reservates. Maybe most people forget this when living in a city, but all you need for a stunning sky view is to go to the next grassland on the countryside around your city. (And you need non-cloudy weather, of course.)
It might not be as perfect as in the preservates, but compared to what you see within a city, it is a huge difference. You see at least 10 times as many stars. And of course you see the Milky Way clearly.
(But beware that a beginner might mistake large, thin clouds for the Milky Way. Also, note that beginners might be confused by the sheer amount of stars, being unable to identify even basic star signs. The trick here is to visit the grassland on sunset, then wait for the dusk, and watch as more and more stars appear on the sky. The first seen (i.e. brightest) stars are usually easy to identify, then you see the brighter star signs, and finally have enough orientation to recognize the rest of the sky as it appears.)
Last summer I camped in Zion National Park and it was the first time I've seen the night sky with such clarity. I couldn't look away - I laid outside of the tent and just stared for hours.
The fact that we're in the midst of a big explosion is quite striking.
My wife and I rented a cottage at Sheep Dung just outside Boonville, CA, a few years ago. Ukiah was on the far side of the hills to the east, another range blocked the coast to the west, and the next closest big city was Santa Rosa -- far enough away not to cause light pollution. I got lucky because the Labor Day wildfires were east of Clear Lake and blowing smoke east toward I-5. It was the first time in my life I got to actually see the Milky Way with my own eyes.
So don't go out for just a short time, plan to spend a while in the dark before fully enjoying the stars.
I used to live in Amsterdam and the light pollution was so bad [1] the night sky just looked like a dull grey, I remember how grateful I was to move away and get to view the night sky more frequently. Light pollution such as that found in Rotterdam is almost suffocating I find.
Sure travelling is an option, for kids? Not really.
[1] https://www.lightpollutionmap.info/#zoom=9&lat=6819816&lon=5...