Times are a changing, the thing is they are always changing. We can learn a lot from our kiddos. Kids are resilient, and have the ability to quickly adapt. Why? Because they live in the present moment.
Watch them play with their toys, interact with a sibling, watch a show. They tune right in. As they get older the conditions and beliefs of life /parents are bestowed upon them. If you see your older kids full of worry, practice demonstrating how to be more present with them. Practice living in the present moment.