Two Different Doctors

Two patients limp into two different medical clinics with the same complaint. Both have trouble walking and appear to require a hip replacement. The FIRST patient is examined within the hour, is x-rayed the same day and has a time booked for surgery the following week. The SECOND sees his family doctor after waiting 3 weeks for an appointment, then waits 8 weeks to see a specialist, then gets an x-ray, which isn't reviewed for another week and finally has his surgery scheduled for 6 months from then.
 Why the different treatment for the two patients?

 The FIRST is a Golden Retriever.
 The SECOND is a Senior Citizen.
 Next time take me to a vet!