Why were merchants in the cottage industry trying to avoid dealing with the guilds in the cities?

During High and Late medieval Era Guild were voluntary association of cooperation and businesses but due to rise of mercantilism guild shifted to be monopolist organization setting the minimal prices and destabilize free market due to that fact cottage industry located outside of the cities wanted to avoid dealing with businesses through the guild and their system. 

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first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

we need an attachment to see what you are talking about.