In this case, the government will probably tax you through bitcoin. For instance, in japan you already can pay bills and federal taxes using bitcoins.
Bitcoin in developing countries is the best or very useful. Specially in terms of business through there payments system. It help them to make there business fast with the transactions.
Agree. Bitcoin is helping in the developing countries why because it helps provide employment and give good profits. Many people are sending there children to school due to bitcoin earnings. When people are educated of course the country itself will be benefited.