Pop-Up tent trailers make a great alternative to the higher priced off road trailers. While they aren't and never will be as capable as a trailer designed for off road use they do offer a nice cost effective compromise. One that might even get the more finicky member of the house into the outdoors. You could pay a lot extra for an "off road" version of one of the popular brands but after looking at the ones available I have come to the conclusion that for the most part they are nothing more than the stock version with a SOA and larger hubs.
There is an alternative, we got this used pop-up for a fraction of the cost of a new trailer;