The existing answers are correct in that many people do use crypto for gambling on price appreciation, but it is important to note that this is not the only use of crypto. Stablecoins are becoming increasingly popular for money transfers, especially in countries such as Russia and Ukraine that have been cut off from the traditional banking system. This demonstrates that crypto can be used for much more than just gambling on price appreciation, and that there is a need for more projects that focus on these other uses.