ringwraith18
Chieftain
Actually, spamming military units to deal with unhappiness is a very inefficient and costly way of dealing with unhappiness.
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Unless you are actively attacking someone, you will have to keep your army somewhere. Stationing it in a few cities, ideally with a high food output, will save you the hammers from having to build happiness buildings and cost you literally nothing, because everyone's got an army right?
There's nothing wrong with relying on Hereditary Rule for a good while, as long as you're not planning on a war. Just make sure you've got the buildings in place for when you switch out.