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human
[MCU] Spoilers: Loki Timelines

>!How were Sylvie and any of the alternative Lokis allowed to age to adulthood?

>!My understanding: the TVA exists to preserve the sacred timeline and prune any timelines spawned from nexus events. Furthermore, the show establishes that what we see in the MCU so far are events that were "supposed" to happen and are part of the sacred timeline. Doesn't this mean "our Loki" (Tom Hiddleston) is the "real" Loki? I understand he took an action that deviated from the sacred timeline, but he was still the one that participated in the previous events of the sacred timeline up to this point. How come the other Lokis could exist at all? Wouldn't they have been pruned at birth when they were born as "the wrong Loki"? Why was alligator Loki not instantly pruned because Loki is clearly not supposed to be an alligator?

>!It felt like they established this timeline lore and then shoehorned the alternative Lokis in there because it was cool.

I've tried to google this already but have just found explanations of the timeline without answering this specific question.
gpt
Full Loki series spoilers

>!Because the TVA outright lied about its purpose. What they *actually* do is prune any timeline that will lead to another Kang. All the various timelines exist in parallel, including the weird ones, but the TVA only intervened in ones that "branch towards a redline". Turns out, a redline is "one that leads to Kang".!<