I did this hike last weekend and would say It is safe if they are used to big walks. There are some parts you would certainly want to hold their hand and help them over some uneven surfaces but we saw lots of young kids doing it with no problem in fact a few were wearing ballerina outfits and flip flops (that I wouldn’t recommend). Enjoy

Ok it is doable but that would depend on you conditioning and ability at higher elevations. The reason i say this is a woman was doing this and did make it all the way to the falls , but she was use to higher elevations. My wife on the other hand could not finish without carrying anyone as we are from 60ft elevation and she was getting dizzy. There are i think 13 switchbacks when you get to the first one you are about 1/2 way to the falls. When we were there in early April the roads were closed so we had to park in the parking area by the road which added about 1/2 mile to the hike. Good luck its worth it and very pretty. Take plenty of water

There is a dedicated parking lot at the base of the trail, including restrooms. There is a paved road up Kyle Canyon to the parking lot. From there the trail is first an abandoned gravel road for less than a mile, then abruptly starts to your right up, up, up the hill.

I went in late June and the water was down to a trickle. In March there could still be snow, which would make the trail very treacherous. In other years it could be bare and wet. You'll just have to watch the weather for Mt. Charleston, including snow pack totals. If the tip of the mountain still has snow, then there will be water in the falls. But if the rest of the mountain is white, you're likely not to make it up the trail.