Does the sun comes out every morning? Hell yes, and on that same basis I watch kids shows, no need to feel shame, they are neat all the time.
I often enjoy watching them because, if they are good and give me a good time, what is there to be ashamed of? Is not that different from a friend who finds telemarketing the biggest advancement of television.
Everyone can enjoy whatever they feel like, cartoons specially because most of the time they can be cheesy and repetitive, but they have succeeded in passing the test of time.
I could watch Top cat everyday, it just simple and enjoyable, so why deny myself of it?