I can attest to the bowler's scenario. When the overwhelming majority of bowlers are right-handed, they first spread the lane dressing (the oil used to lubricate the wood or synthetic lane material), down the lane, delaying the bowling ball's hook and power into the 1-2 pocket. Then, as more bowling is done on the lane, the oil begins to get picked up by the bowling balls, forcing the bowlers to move left and/or change equipment with different hook potential or break points as their normal delivery hooks more. This redistribution and removal of the lane oil by the balls was even more pronounced with the advent of reactive resin bowling balls in the 90s.
As has been stated, lefties (assuming there are few), don't need as much adjustment or wild and numerous equipment changes during matches.
It's one of the reasons I gave up bowling: I'd walk into a bowling alley with two bowling balls and adjust to the changing lane conditions with technique; other bowlers would simply break out a different $200-250 bowling ball of the four or six they'd bring in, and continue to use the same speed, hand positions, releases, or lines.