I love the pics of your little helpers!
I know what you mean about not having to cat-proof a house with "senior" kitties.
Samantha uses a step stool to get up to her favorite chair and won't jump very often anymore, she prefers to step up.
It is nice to have a cat that we can trust not to go after our parakeet either. The worst thing she does is stare at the bird with big eyes!