Europa Barbarorum was designed to create a strictly historically accurate game, often at the expense of what some would consider "fun gameplay". But here's the deal, most people here consider historically accurate gameplay to be fun. If you don't, then you have a number of options:
1. As Atilius so politely suggested, play a different faction (You did mention that you don't like playing as Rome anyways, so what's the big deal?)
2. Ignore it and play anyways, as some here have suggested
3. Go back to vanilla, you'll probably find a much better so called "balance" between gameplay and "reality" there.
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