Why my dogs don't wear collars with GSM

Best German Shepherd Vitamins and Joint Supplements. Link to the Best Vitamins and Joint Supplements for German Shepherds:
https://www.germanshepherdman.com/nutrition-direct

Best German Shepherd Puppy Training Course for puppies 2-6 months. Link to Puppy Training Course:
https://abts-of-dog-training.teachable.com/p/abts-of-dog-training/?preview=logged_out

Best German Shepherd Puppy Training Course for UNTRAINED older puppies from 6 to 16 months. Link to Older Puppy Training Course:
https://abts-of-dog-training.teachable.com/p/abts-of-dog-training/?preview=logged_out

Link to Best German Shepherd Raw Diet Food: raworigins.pet?sca_ref=2061917.RQJzHOLKfd

Become a SUCCESSFUL German Shepherd Breeder. Link to German Shepherd Breeding Course: https://abts-of-dog-training.teachable.com/p/abts-of-dog-training/?preview=logged

Best German Shepherd t-shirts hoodies hats merch. Link to German Shepherd Merch: https://www.redbubble.com/people/GermanShepMan/shop?asc=u&ref=account-nav-dropdown