Rhodesian Ridgebacks are great with children! My husband had one when we got married (over 11 years ago now!) and when we started looking into breeding and getting more Ridgebacks, that was one of my primary concerns. Now I've had quite a few RRs and most of them have come to me full grown--some of them with no experience with children--but every single one has been very good with my kids! I trust all 6 of my RRs with my kids. They've taken food out of their mouths, sat on them, and have never been harmed--other than the occasional getting knocked over by such a big dog!
If properly socialized, they are good with other dogs too. Especially if fixed. I have a pair of Cavalier King Charles Spaniels, a couple of toy poodles and one Golden Retriever here and I trust all my RRs with them except for one cranky female. But hormones have alot to do with her mood swings! I have a tiny 6 lb poodle that sleeps on top of my RRs and actually slept with one of my females and her puppies and the female didn't mind at all. I was actually a little surprised by that one! Now the puppies think that the poodle is their smaller, fluffier sibling!