Im a bit embarrassed to ask but here it goes, as Ive been worried about this for a while. I do play Minecraft and Ive been playing a lot, but Ive been noticing some really weird glitches that I would like to ask about to make sure there is no way I would be breaking my sisters game. Some things I have seen include:

1. Multiple baby zombies spawning at night WITHOUT a Spawn Egg.

2. A baby Drowned at night, on land, no water in sight, the only water is the rain pouring down, again, no Spawn Egg. ( Im pretty sure this was a weird glitch, as it disappeared a bit later, but I still find it weird and scary enough to at least mention it.)

3. Nearly every other world I spawned I eventually found a badlands biome, one or two I think might have been the really rare ones...

4. Multiple zombie villagers spawning at night. not in an abandoned town, and again, no egg.

5. A spruce tree spawned in a savannah. ( my sister said this was not a dangerous glitch, but I still wanted to mention it.)

6. A Desert temple spawned with TNT, but not a single chest.

7. Im generated towns or at least a few of them, some are for example I recently had a tiaga village spawn with a plains look, and while it was next to a plains, the half that was in the tiaga spawned with oak roofs.

Thats all I can think of right now though I might come up with more as it progresses. My question is this: am i just being paranoid or am I right to be worrying about this?...

no, you are fine! baby zombies and villagers are rarer than normal zombies, so you are just really unluckily lucky. drowned are zombies that went underwater, so that is not too problematic. the drowned above water is not an oddity, if it was night, raining or both. badlands biome? ooooh you mean mesa. mesa biomes are just in the seed, and you just happened to stumble into them. spruce tree in a savanna? odd, so a glitch in the code. its nothing to worry about. desert temple with no chests? thats just ******ty luck. with the villages, they tend to take on the appearance of the biome a majority of the town is on.
in all, you should be fine. you just have weird luck, that is all.

Thanks! Im happy to hear that I have nothing to worry about. And yes, I prefer to call it the badlands, for a few reasons. But thanks. Would you like anything in my hatchery as a thank you gift? Free of course.

nah, i wont have enough room for it in my stables XD

One more question, what about a town that started to generate but didnt because a broken portal took priority? I saw the gardens, but the resulting village only had two complete houses in it. Should i be worried?

Addition aplains villager showed up in a tiaga village when no plains biome was in sight. Nearest other biome was a jungle agan, should i.be worried?....

no. i have had MANY tghing like that happen, like an an outpost melded with a village. that villager must have had a bit of a coding problem XD