The reason cats bite people’s feet in the morning is because cats’ nature is to hunt. When they see moving feet, they will treat the feet as prey to catch. Moreover, the cat will also want to play with the owner when the owner wakes up after a night’s sleep. Therefore, it is normal for them to bite people's feet in the morning.
Tips:
When a cat bites a person’s foot, stop it in time to prevent the cat from developing bad habits. It is best to prepare some toys and cat teasing sticks for the cat.