Exactly some users fail to do this because if they are ro innocent for this they are to lazy to seek for further information about what notice they receive. If majority just have critical thinking towards this and always know what to do especially when receiving a unwanted or verifiable information for sure they never get victim on this kind of schemes.
In fact I always suspect if there are emails about wallets and any kind related to Crypto. Unless I'm right to do that myself. Because I always pin the sites I visit. It's one of the methods I use to avoid scam sites. I also often overlook emails that I thought were useless, not from my job. Because they always communicate with me if they send an email. Although the current model of criminals is very diverse, the important thing is to always be vigilant, don't trust anyone in the online world. In addition, I also rarely use metamask, trust wallet to connect with Airdorop sites or other exchanges.