Are Ragamuffins like Ragdoll? We have one...she's strictly indoor. We have two others that are in/out.
We only feed dry kibble cat food mainly for dental health. They should be transitioned slowly or you may have diarrhea issues. We use a mixture of Meow mix indoor and meow mix outdoor. Our outside cats eat shrew, mice, baby bunnies, bugs, birds (unfortunately). I think cats are easier feeders honestly. We mainly feed the mix because 2 of our 3 are long hairs and can get hairballs. The Meow Mix also has an ingredient to help with hairballs. I also have wheatgrass planted for the indoor cat to chew on as she likes.
I have had cats live well past aged 20 too, so cats are even more of a long-time commitment than dogs.
Chris, mom to:
Tank (Cardigan Welsh Corgi)
Odin (GSD 8/28/13)
Valentine-our ragdoll cat
Two great skin kids