Just purely out of curiosity. 99% of people who don't know how to properly create an airgapped device should be using hardware wallets.
There are many reasons behind that people are not using hardware.wallet. And let me show you these,
1) First Of All All people are not aware of Hardware wallets like ledge nano wallet etc.
2) hardware wallets are not cheap and they cost some hundred bucks. And low volume users cannot afford to buy these wallets.
3) most people do not trust hardware wallets.
As you can see it ranges from 150 to 300 dollars and that's the reason mostly people do not know about this.
Yeah, the price is definitely not cheap but if you own 1btc or more, $300 is a small amount to pay for maximum security assuming this is what you get when you purchase a hardware wallet.
i think the reasons are relative, in my case, I never really find it that necessary to own one, especially the convenience of carrying it along, if you are forgeful, it can be a huge disadvantage too.