Scuba diving is the top extreme sport that many British people want to try but hesitate due to fears about safety and making mistakes. A survey showed that scuba ranks higher in this aspect than sports like skydiving and surfing. One-third of people feel anxious about trying new sports due to social fears, and many worry they are too old to start. These anxieties can stop individuals from experiencing new adventures, but overcoming them can lead to increased self-confidence and personal growth.