Some people like dangerous sports because they get a big adrenaline rush from them. It makes them feel really alive and helps them forget about their normal life for a while.
Dangerous sports are appealing because they are challenging. People feel good when they can do something difficult, and it makes them proud of themselves.
Some people do dangerous sports because it's part of their culture, or because their friends do it. They like feeling part of a group that enjoys the same things.
Dangerous sports can help some people relax and forget their problems. When they are doing these sports, they have to focus, and this helps clear their mind.