As Bill indicated, there are beginner friendly trails on Snowshed at Killington Bike Park, try Squiggle and Wiggle!
Yes when I was there two years ago the Snow Shed area had flow trails that were double built with berms and jumps but flat bail outs for little ones who didn't have the skills. So both adults and kids could ride the same trails and each have fun. Kind of like a half mogul half groomed ski trail. Go to killington.com to see the trail maps
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