RDP
Contributor
My first BC was a jacket. It was nice and comfortable, but I tried the BP/W and I was hooked. It just felt better in the water. So, to answer your question; there is no reason a beginner should not start with a BP/W. Perhaps they are swayed toward the jacket because a jacket is more familiar to a newbie and it is more comfortable out of the water. (If your not making a hike, who cares about out of water!)