If she likes them and it keeps her happy then there’s nothing wrong with it, and don’t worry about teeth. At some stage in a pets life the long term impact vs quality of life balance is in favour of just keeping them happy. No point saving her teeth if that means she is miserable for the rest of her days? Our dog made it to 15 eating all sorts of things that were theoretically bad for him, with only 3 vet dental cleans over the years. He had a very happy life, no teeth brushing and no regrets.