That's your opinion. Personally, I probably wouldnt have had an issue with the two kids messing around at that BBQ scene, unless it was going too far and they might actually get hurt. But, I ALSO wouldnt have an issue with parents deciding they dont want their kids to do that, period, because they think it's wrong to promote that behavior. I dont think either way is evil or wrong or dangerous. Because again, roughhousing is not required behavior for male survival.