I've got a lot of wild raspberries and blackberries growing together. Also have some Heritage ever-bearing cultivars. Although the wild ones taste better, the cultivars are much faster and easier to pick. Also much better looking, which is important at times. Still picking wild berries to supplement until the garden fills in, but once it does goodbye wild plants.
These brambles die after producing 2 crops. The new brambles in the pics will produce their first crop in a few weeks or so then they will produce an early summer crop next spring and then they die. New brambles start growing each spring.