I grew up on boats of all sizes and shapes. By all sizes this includes even square ones as my Dad worked on a Dredge and before insurance liabilities killed everything that is fun, we used to go join him on the weekends when it was his turn to do security duty. I took my first steps on a rocky afternoon in that thing, so they tell me. Ran to one wall bounced off it and ran back to my mom with the motion of the wave.
That looks like way more fun than a square barge with a cramped living quarters though. Fastest boat I was ever on was some millionaires tourists cigarette boat who hired a couple of us kids at the wharf to take him out to the best mackerel fishing grounds. I lost my favorite ball hat from going so fast but I didn't care. What a RUSH!!