^And really I feel like if that's the case bree is probably more suited for starting area than Shire
It is said that "The (North Dunedain) Rangers were also familiar to Bree-folk, though they are suspicious of them (and to them) "
Also the only two known bree characters are Bill Ferny (https://lotr.fandom.com/wiki/Bill_Ferny) and a spy of Saruman (https://lotr.fandom.com/wiki/Squint-eyed_Southerner), and neither of them are really on the good side. (Bill Ferny is an info broker who would sell information to Nazguls and later support Saruman's "conquest" of Shire, and the Squint-eyed Southerner is downright an agent of Saruman. Also men of bree are offsprings of dunlendings, and never supported the war effort of good during the war of ring
It almost makes more sense for them to be evil side, if not for they never openly attacked anyone (including the fellowship)