How many sets of scrubs should I own?

Could you please elaborate on the rationale behind owning a certain number of scrubs? Is there a specific number that is considered optimal for medical professionals, or does it depend on individual factors such as frequency of wear, laundry habits, and budget constraints? Are there any benefits or drawbacks to owning a larger or smaller number of scrubs? Additionally, are there any recommendations for the type of material or design that is most suitable for scrubs?