Maybe you're right and it isn't illegal if it's a "young woman". I've also no intention to investigate that issue further.

My point was going more into another direction: We can't rely on the hope that nobody would ever insert illegal data in the blockchain. Because as I wrote there are ways to do this without Taproot or Ordinals. And someone who wants to destroy Bitcoin could use whatever method, even those old methods from 2013 requiring fake addresses.

I'm also sure that one who really wanted to do it could even insert whatever data in a blockchain without any scripting, like Monero (that's also an answer to @n0nce). One simply would use a combination of (vanity?) addresses, transactions and amounts which would encode the picture, text or whatever, and then build a protocol around it. Would consume lots of block space as it's very inefficient, but it remains possible.

That's why I cited Arvind Narayanan. The crucial word is "intent". If you are using Bitcoin for financial things, not decoding illegal data/files, and (as a miner) reporting to the authorities if you have some info about someone who is trying to insert such data in the blockchain (i.e. IP adresses) then you should be safe.