Towing is always dangerous when done by a novice. I for many years towed a 24' boat that weighed approx 6,000 lbs (incl trailer) behind a Jeep Cherokee. The weight of the boat seriously exceeded the weight of the Jeep, & it was a short wheelbase vehicle. Towed it generally 60 miles each way, winding, narrow, hilly roads. Never once did I have an issue or a scary moment - make sure your equipment is set up properly and you are attentive to what you are doing. Make sure your tongue weight is right, and make sure the components on the trailer are sound.
The only scary moment I ever had pulling that boat was when I pulled it with a full size Dodge PU, and it pushed me around a corner, nearly jack-knifing me. There wasn't enough weight on the rear axle relative to the rest of the vehicle to provide proper traction.
I just saw a lady nearly lose a 6' trailer with an ATV on it pulled by a full size SUV - it was ALL OVER the road before she got it stopped. Driver skill and attentiveness is the most important factor in towing.
"If you're not living on the edge --- you're taking up too much space!!"