My son, 8 years old, is beginning to show a slight interest in my guns. If his interest is there, I plan to buy him his own around 10 years old. I ponder a lot about at it will be and I really like the idea of the single action revolving carbine in .357/.38. Less than four pounds, SA only and I can load 38spl loads that are as soft as a .22. I am usually only keen on it until is see the price tags, the only current production I can find is a cimmaron at around 800$ bones. Not only am I not a huge fan of cimmaron, I also think I'm setting myself up for a bad day giving a new shooter that's still a kid a piece of 800$ wood.
Uberti has the buntline for a tad less dough, probably a solid rifle too. I have never seen one in stock though. But these are all just back and forth thoughts, my mind will change with the wind, and ultimately it will end up being a decision of his, so long as its singke action, single shot or lever shooting a low power handloadable cartridge.
Me personally? Never had an interest. I feel like it would be losing some accuracy over a lever guns solid chamber, it has less capacity than a lever, it seems very awkward to grip without using bags or sticks on the front and it costs more than a lever, maybe if they could pull off a forend it would make more sense. Just can't think of one plus a revolving carving has over a lever except brass retrieval. I do find them to be very interesting and visually appealing though, and if I ever had the means to just collect guns that I found interesting than I would surely acquire one. But that seems like a pretty small market of folks and isilikely why no majors have decided to dive into production.