Don't catch worldliness

When there's a contagious sickness going around, like in flu season, we're told to get vaccinated because one person gets it, then another, and so on.But with spiritual darkness ,I see some similarities.We inherited the fallen nature,which leds us astray. Because of the fallen nature, our bodies are imperfect and can get physically sick.But more,how you "catch" cold, etc. and also how certain "conditions" seem to run in families__the same with a lot of spiritual sins.Like, I know someone who said they got into drugs because he grew up around it,in his family, and saw nothing wrong with it.I know whole families who are into the occult,and in one case, the daughter, it was drilled into her by the mother since very young, so she admits the mother influenced her.It's like, one persons sinful actions influence the other.{When someone is brainwashed, they don't question if it's right or wrong, they just blindly follow}.One way is through what they see from the family,but also society. Nowadays, news travels quickly, so if a certain worldy trend takes hold, before you know it, look how many people are playing "copycat".Because the influences are all around us. That's what I would compare to a contagious sickness. But the "vaccination", is reading from the Word why these things are wrong, and why NOT to get into them.The "strong immune system" is resisting it, when one close to us does it.Like, I've seen people who at first were grounded, then they have a son or daughter who is gay, and all of a sudden,they're like." well, maybe it's not so bad after all."