Yes, there are common stereotypes associated with Planet Fitness. People often see it as a "beginner-friendly" gym that doesn't cater to serious athletes or bodybuilders. This is due to the gym's philosophy of maintaining a judgement-free environment and their restrictions on certain exercises and weight limitations. As a result, it may further perpetuate the stereotype that Planet Fitness is not a 'real gym' in the eyes of more experienced fitness enthusiasts.