GOOD looking mutt.
While I am kept by two PURE-bred show-dogs (retired), I suspect a "mutt" is often a better all-round dog unless you have the specific needs that the breed was bred for. If you raised sheep in wolf/bear country, a Pyr is a great dog: big enough to scare bear, lazy enough to need little food. But if there are non-evil persons around, a field Pyr can be a handful, even dangerous. My Corgis aren't even good for "what they are for": NO interest in cattle. (But they will "stand for Judge" very nicely, which is helpful at the Vet.)
> I have maybe seen 10 bears in 9 years?
> I had chicken pieces in a bag I was using to train the dog.
If I saw a bear a year, I don't think I would be walking around with cut-up flesh. They tend to avoid people, so the few you see are the tip of the iceburg.
> he is not too sure about what children are. He barks at them, but not a evil scary bark. The tail is wagging the whole time, but he is not quite sure what these miniature people are.
It is a "play with me!" bark. He may also go down on front elbows. He has a glimmer that these are people puppies. People (like you) are fun, puppies are fun, so whatever people-pups are, they must be fun. He may be unsure just how you play with a people puppy but he's eager to try.
If you can borrow some not-dumb children, it would be good to let them play, BUT on short leash. Dog puppy play is based on what dogs are best at: attacking prey. Chase, jump, wrestle, mouth action. That's OK when playmate is covered with thick fur, and not balanced precariously on two legs..... he needs to learn that people are thin-skinned and wobbly, and he must NOT use mouth or take-down "play". If the kid is smart, the first time he touches a tooth to skin, the kid can "flip out" and "cry".... dogs are very sympathetic and will understand "hurt". This guy is smart enough to learn other play for people and their pups.