That makes me kind of sad, actually.
Around our area, a bear that does that in May would almost certainly be dead within the summer. If that video were taken in my neighborhood, I would bet on all three bears being dead by October. Once they are that habituated to humans, they start breaking into houses, approaching humans for food, and then getting aggressive about taking food that people have. At that point, Fish and Wildlife typically kill them. A bear that is not afraid of people is usually a dead bear. We humans do not tolerate animals that are unafraid of us.
If that guy actually liked bears, he would have yelled and screamed and chased them, thrown things at them, hit them with a slingshot with something soft in it (small bean bag, maybe an acorn, but not a rock or anything like that).
I just had a "silencer" pad for dropping weights ripped apart (I'm traveling but the neighbor sent me a photo). I spilled a little wine on it when we toasted our friend pouring footings for her house. Bear smelled it and destroyed it.
Those are not cubs, by the way. That is most likely a mother and two yearlings (aka "teenage" bears as people often call them). Cubs are the first season and usually quite small. Those guys are actually on the big side for yearlings, but maybe in warm climates with short winters they get that big. The normal life cycle is that the cubs den up with the mother for the first winter, because they don't have the body mass to survive denning solo. The second summer they stay with the mother for a while. If they are males, she usually chases them off. If they are female, they might spend the whole summer together unless the mother is looking to mate. In high food abundance, females mate every two years, but every three is more common where it's colder and where food is more scarce.
