I’m a security engineer, and encryption is great, but can be bypassed. Relying on encryption assumes it was implemented properly, that the system was shut down properly so all keys were flushed correctly, and the encryption algorithm doesn’t have weaknesses.
Generally if somebody dedicated enough can acquire physical access to a system, they can probably find a way into it given the right resources. Did that happen here? Probably not. Could it have? Absolutely. That’s why most enterprises or government hard drives are shredded rather than just relying on them being wiped or encrypted.
Encryption is part of the solution, but it’s not automatically the complete solution.
On the off chance that you’re actually asking, there have been studies that have shown the regret rate for transitioning is less than 1%.
Here’s an article about a recent study which tracked people up to 23 years post-transition, showing median regret as 0 out of 100.
Now, you might be thinking to yourself “but that’s just one study, with around 200 participants, and the results were so uniform it caused issues with the statistics. Maybe it’s wrong.” Well, here is a meta-analysis of 27 additional studies, with almost 8,000 participants, which also shows regret rates are <1%.
Hope that helps.