I adopted two girls and was absolutely floored to walk home one day and see them bickering like real kids. That was so surprising, but it took them less than 2 seconds to realize I was home and bug me for an allowance.
I believe this is as difficult as it gets. Every so often, I give them candy, toys, and an allowance, but if it wasn't for my attendant, the girls would be lonely. I'm hardly ever home, thanks to the demanding citizens of Skyrim (who obviously are so damn lazy and incompetent, there are abandoned kids
everywhere).
Once I'm done taking care of business, I plan on retiring, living in Lakeview just to sit back and watch my kids grow up.
That is, until the next DLC calls me out of it.
