Many people don't know about risk of flex that can cause to hacks, physical attacks, deaths and not limited to financial loss, so they do flex many times. Some people know about risk but they don't assess it at proper severe level so they consider it as tiny and inconsiderable risk and continue to flex.
If they learn lessons but don't pay for lessons with their all life, it is good enough but if it is death, that will be very costly lesson.
Moreover there are people who constantly share their holdings and trading account on social media, they still live very fine and peacefully no one has come to rob them or extort from them, they still go out, drive nice cars some fly for vacation and even eat in expensive restaurants. it depends on the level of security you have in your country. You should be worried about not trying to misplacing your seed phrase, that’s is the greatest pain. You will just have money your can’t access, that feeling is always unbearable. Being security caution is the key to dealing with the Bitcoin and blockchain technology. I like the fact that the technology made us sole responsible for what ever is going on in the wallets.