I have my parents and my Amazon accounts on my device, why are our search histories and recently viewed showing up on both accounts?

Pretty much what the title says, my parents have prime and I don’t so I have their account on my phone. We are not in the same household, completely separate emails and such. They do not have access to my account.

When I search something or view something on my account, I notice it shows up on their account as well, and vice versa. I’m a 27 year old woman so I’d rather not have my parents see everything I …

account accounts amazon device don emails parents phone prime privacy search