You're really not safe in the jungle unless you've got a jungle-bonus yourself. It's hard to overstate what a massive disadvantage junglestarts actually are.
Your exploration ability will be heavily hampered, your first warrior can't really move at all and your scouts got really limited vision-range, this means you pretty much lose out on most ancient ruins/city-state-discover-bonuses.
Your happiness will be limited because you can't connect luxuries (do seriously consider settling your cities on top of the luxuries if you get such a start). This will probably not drop you into negative happiness, but you're still losing out on yields and possible trades.
Your improvements will be way behind, workers can't remove jungle anyways, so you're going to cut them, which furthers slows down development. You're also forced to dump a lot of hammers into a herbalist as soon as it is available, which helps with the meh tiles, but definitely doesn't help with your lack of workers.
Your ability to wage war is limited, not only do you not have access to good production-tiles, but you also have no real way to move units out of your territory. You think attacking into jungle is hard? Attacking out of a jungle is just as bad, if not worse, as you can't reinforce at all.
Your only available bonus-resource is Bananas, and they are a non-factor before plantation, and even worse when you're halfway to the plantation (could they please get their base-yields back?)
And the biggest problem of all, horses don't spawn in jungle. Iron can spawn in jungle, but it to be less common than out of the jungle, and it takes forever to improve.
Also about that whole plantation/terrace farm discussion, Terrace-farms does not count as farms for adjacency bonues, that interaction is impossible (according to G), they simply add food to all adjacent farms.
Your exploration ability will be heavily hampered, your first warrior can't really move at all and your scouts got really limited vision-range, this means you pretty much lose out on most ancient ruins/city-state-discover-bonuses.
Your happiness will be limited because you can't connect luxuries (do seriously consider settling your cities on top of the luxuries if you get such a start). This will probably not drop you into negative happiness, but you're still losing out on yields and possible trades.
Your improvements will be way behind, workers can't remove jungle anyways, so you're going to cut them, which furthers slows down development. You're also forced to dump a lot of hammers into a herbalist as soon as it is available, which helps with the meh tiles, but definitely doesn't help with your lack of workers.
Your ability to wage war is limited, not only do you not have access to good production-tiles, but you also have no real way to move units out of your territory. You think attacking into jungle is hard? Attacking out of a jungle is just as bad, if not worse, as you can't reinforce at all.
Your only available bonus-resource is Bananas, and they are a non-factor before plantation, and even worse when you're halfway to the plantation (could they please get their base-yields back?)
And the biggest problem of all, horses don't spawn in jungle. Iron can spawn in jungle, but it to be less common than out of the jungle, and it takes forever to improve.
Also about that whole plantation/terrace farm discussion, Terrace-farms does not count as farms for adjacency bonues, that interaction is impossible (according to G), they simply add food to all adjacent farms.
