The second consideration for the formation of a monetary union is the desire to counteract perceived economic and political weakness which dates back to the period of colonial rules by putting in place regional institutions, of which a monetary union and common currency would be strong symbols. It would also appear that the launching of the European monetary union has influenced this process.
More specifically, the visible horizon will be further from you, the higher you are above the ground. This natural law is quite interesting in that it also applies to the laws of economics. If I were to apply this law to your chosen goal, I would paraphrase as follows.