Nothing in this chapter shall prohibit any resident of the Veterans Residential Services facility at Rocky Hill from practicing the occupation of a master barber in said facility. Nothing in this chapter shall be construed to prevent any person holding a registered hairdresser and cosmetician’s license under the provisions of chapter 387 from cutting the hair of any person, or to prevent any person licensed under the provisions of chapter 387 from carrying on the occupation of hairdresser and cosmetician. Nothing in this chapter or in chapter 387 shall be construed to prevent a licensed registered hairdresser and cosmetician from working in a barber shop or a licensed master barber from working in a hairdressing and cosmetology shop.