Cannot leash animals

Unable to “leash” animals with a lead. I tried leashing a llama and I was only given the option to “mount” the llama. Tried taming the llama and attaching a carpet tile to the llama, still couldn’t/wasn’t given then option to “leash”’with the lead. Tried on a cow and a pig and still couldn’t “leash either animal with a lead. The only thing I could leash was the wandering traders llamas.