You are responsible to show them guidance. You must try and be creative in your approach. If you don’t sound like lecturing them, they don’t feel judge, and you use an indirect, creative approach, many times it will work. But sometimes it will not work and they continue rejecting guidance. In that case you have fulfilled your responsibility. So if you lose hope and realistically they are not accepting anything from you, you don’t have to keep trying. Yes, every once in a while try to creatively remind them. Reminders help significantly over time. Show them kindness, compassion and empathy. Talk to them from your heart.