And good on them; that'd be good for my grandmother, especially now that my grandfather's old SLR has died.
There's still a demographic out there that doesn't pick up on new tech quickly, either because they can't, they won't, or they don't have time to learn.
Then your grandmother should pick up a $2 film camera at a thrift store. This is a scam designed to get old people to opt-in to a mountain of spam.