Its kind of funny how good of a fit danes are for my family since I told my wife I wanted one out of spite that she changed her mind on letting me get a doberman. I was set on getting a "man dog" after having a small yappy dog as a kid and read up a ton on dobermans and thought one would work out well for us. She got nervous over the stigma and backed out so I said okay, then we'll get a great dane. Really neither of us knew what we were getting into but we drove to Lyman Wyoming to pick him up in the middle of a snow storm and he just kept growing. We took him to dog parks a bunch and rather than play with the other dogs he'd just make the rounds to the humans and lean up against them for some ear rubs, still does I guess. We go to the dog park a lot less now but still do walks in the neighborhood. Hes way good with neighborhood kids and often will crouch down on his own when kids come up and want to pet him.
He was kind of ambivalent when we brought home Alice and to a certain extent the same way with our 7 month old son Eli. I just hope Charlie is around long enough that he and Eli can play together.