Is there a reason for Ukraine's avoidance of direct strikes on Russian governmental institutions in Moscow?

There could be several reasons why Ukraine may avoid direct strikes on Russian governmental institutions in Moscow: 

1. **International Consequences**: Striking Russian governmental institutions in Moscow could escalate the conflict and lead to severe international repercussions, potentially drawing in other countries and making the situation even more complex.

2. **Humanitarian Concerns**: Deliberately targeting governmental institutions could result in civilian casualties, which goes against international humanitarian laws and ethical considerations.

3. **Focus on Strategic Targets**: Ukraine may be choosing to focus its military efforts on strategic targets that would have a more significant impact on the conflict or that could weaken Russia's military capabilities more effectively.

4. **Avoiding Escalation**: Targeting Moscow directly could trigger a significant escalation by Russia, leading to further destruction and loss of life. Ukraine may be trying to manage the conflict to avoid further escalation.

5. **International Support**: By avoiding direct strikes on Moscow, Ukraine may be seeking to maintain international support and portray itself as a responsible actor in the conflict.

These are speculative reasons, and the actual motivations behind Ukraine's military strategy are complex and may involve a combination of factors.