As a junior developer I'm always afraid using any AWS service to make a mistake that cost me a lot of money. I'm not talking about millions, simply 2k would be really bad for me.
I struggle to consider a scenario where setting up a limited liability organisation wouldn't make sense, even if only for interacting with Amazon.
More often than not, I hear stories about how AWS support zeroed out the bill instead.
As sibling reply also says, even if they do eventually zero it out, do you want to owe the richest guy on the planet $100k? He has law firms like you have pairs of socks.
Obviously everything I'm saying goes for unlimited-billing cloud infrastructure, where your customers (or your mistakes) generate cost out of view.
[1]: https://www.ukpostbox.com/address/business-address-service