Mountain Biking Is Hard. Personally i like the 29 wheel riding a 29er just feels great. Plus mountain bikers ride in a more upright position as than road bikers.

People see it as super hard core and they hear about people getting hurt but it s. A hardtail or a full suspension mountain bike. You d be hard pressed to buy a high end mountain bike in 2020 that offers a front derailleur.
It also ups your metabolic rate.
Personally i like the 29 wheel riding a 29er just feels great. As simple as the question may sound the answer is a lot more complicated. In the world of mountain biking many first time riders ask which type of bike to choose. Which is why some riders can eat shedloads and still be skinny rakes.