It’s because they’ve all grown up with great digital cameras that take a good neutral photo. To get any sort of interesting film effects they’ve had to apply filters after the fact. These 2000s point and shoots take photos that look like a “retro” filter but straight out of the camera so it’s somehow more authentic. Also it’s a entire piece of hardware dedicated to this one seemingly simple task, which is endearing. But it’s also digital so it’s familiar. It’s from 20 years ago which means it’s something their parents probably used, so it’s personally relevant nostalgia too.