It's a basic rule of thumb, isn't it? Especially for a non-airgapped device, either phone or computer/laptop. But of course, it will change the convenience and accessibility which is more people used to be comfortable, convenient to use ready-to-use device than having such secured setup thay will take more time to send. And guess what, it will end up in very the same manner just like everyone who lose their funds out of their hot wallets.
The so-called stressful or time-consuming process of taking safety precautions cannot be compared with the pains of losing money. Some people are just too lazy to do the right thing and they will end up learning the hard way.
No body is entirely 100% a security guru until they are attacked and notice that they have a loophole they need to cover, but some have been able to upgrade and cover their little mistakes by just being very careful and taking corrections from those who fall victim to hacks and exploits. As days go by, that’s how we will have to expand our knowledge on security and make sure that we are not left behind; even the most once-known secured devices are now discovered to have security issues that raise concern.
New scam strategies are developed almost every day. That's why we should keep learning. But some people don't care much about the safety of their funds that they fail to adopt well known and simple protective measures.