Dreams often reflect our subconscious thoughts, feelings, and experiences. In your dream, several elements stand out that may hold significance:

1. Concert: This could symbolize an event or opportunity you are looking forward to in your waking life. However, the fact that you did not attend may indicate feelings of missing out or being distracted from what you truly want to experience.
2. Children: The presence of the disrespectful children might represent aspects of responsibility or chaos in your life. They could symbolize feelings of being overwhelmed by obligations or the difficulties that come with taking care of certain matters. Putting them out in the rain may suggest a desire to set boundaries or remove negativity from your life.
3. Relative's Involvement: Your relative's behavior (sleeping or engaged in something inappropriate) may reflect feelings of frustration or disappointment in someone close to you. It could indicate that you feel unsupported or that others are not meeting your expectations when you need help.
4. Perfume: Spraying perfume might symbolize a desire to refresh or beautify your life or surroundings. It could also represent trying to mask or enhance certain feelings before moving on to the next phase of your life, such as the after party.

Overall, this dream could be highlighting feelings of responsibility, frustration with others, and a longing for enjoyment or freedom. It might be worth reflecting on any current situations in your life where you feel overwhelmed or unsupported, and consider how you can set healthy boundaries while also making time for your own enjoyment.