I have good friends, but I don't have family.
About six months into the pandemic I started having severe panic attacks.
Since we've been back in the office part time, my mental health has improved dramatically.
Point being that working with good people can be a healthy part of a social life, and saying the people who rely on that have personal issues seems... well, privileged.
There is value in having a team working closely with each other, and enjoying that doesn't mean you're broken.
Only read half the comments, so maybe someone has suggested this, but:
Either the seed or the ledger were compromised (I'm ignoring the trust wallet, that's not the interesting hack).
Either:
1. You're wrong about the paper copy of the seed (that is pretty obviously stored in your family's safe, based on your comments) never seeing the light of day.
2. There was another copy of the seed on some other medium (seems most likely to me, tbh — the trust wallet was also compromised so if there was a photo of the seed paper on the iPhone as well, that would add up neatly)
3. Someone got ahold of the ledger itself and the pin.
4. Your kid plugged in the ledger and got phished into signing a malicious transaction.
5. Someone has magic quantum voodoo powers and used it to steal < 10 BTC instead of stealing thousands.
6. You or your kid are lying.
I've been working in blockchain for 7 years and I definitely could have missed something but those are literally the only possible options that make any sense.
Point being that working with good people can be a healthy part of a social life, and saying the people who rely on that have personal issues seems... well, privileged.
There is value in having a team working closely with each other, and enjoying that doesn't mean you're broken.