Preschoolers are asking "Am I able?" and we could respond by embracing them- teaching them new things and letting them figure out what they can do on their own.
Elementary kids are asking "Do I have what it takes?" They are comparing themselves to others in school, in sports, or even to their siblings. Our response needs to be to engage them. Show them that we care about what they care about.
Middle Schoolers are asking "Who do I like, who likes me?" They are looking for acceptance. Our role is to affirm them, help them see their value and own their faith.
High Schoolers are asking "Why should I believe you?" They are starting to see themselves as adults who can make their own decisions. Our role is to mobilize them to become the best they can be. Give them a goal and a mission.
I think you could go on and on. At this phase in my life I think I'm asking "Am I doing this right, do I still matter?" I am looking for friends to support me, people to love me and encourage me and tell me to hang in there. Where are you? What do you need right now?