I’ve seen bullwhips used more for outdoor skills and practice than for actual hunting. They can be handy in certain situations, like driving animals, making noise to scare off pests, or even as a survival skill for signaling since the crack carries a long way. Some people also practice with them for hand–eye coordination and accuracy, which can cross over into other outdoor activities. For hunting, they’re not really practical as a primary tool, but as part of general outdoor skills they can be fun to learn and useful in specific scenarios. If you’re interested, it’s worth practicing safely because they take some skill to handle without injuring yourself.