the towns are NOT that big at all. chocobo in LL would be ridiculous. it's all small paths that go through buildings with the occasional area big enough around fountains and landings. seeing those birds run upstairs. UGH. grid would probably be the best place for them. it's at least outdoorsy. uldah's main street is the only other place it could fit but other than that, they are going to looked cramped in there, then multiply that by like 10 once you account other people. srsly imagine like 5 birds running up and down the stairs of LL.