You should punch the kid in the face, set the lady's hair on fire, and maybe cut a finger or two, before putting a ball and chain on the kid and forcing him to years of sweeping streets so he learns your culture of kindness, sharing and community, by force if necessary. And when he invariably fails due to institutionalization and abuse, deport them back to their country of origin with barely the clothes on their back.
Or you could, you know, say hello, and engage in genuine conversation like a fucking normal human being, showing genuine curiosity and respect. Understand their background and culture and figure the bests strategies to articulate their values with your culture's values to establish a common ground where the principles and purposes of your rules and laws make sense to both.