We define moronic differently.
Seniors are already at extremely high risks of exploitation and fraud. They often have low technological literacy skills.
Open wifi is cheap but is also a great way to share your data, since everything runs through that persons wifi. It might sound paranoid, as most open wifi wont be breached, but is it really worth the risk?
Did you know that people are attaching devices at public/business locations that when you plug your device in to charge it grabs all of your data? I'd personally rather charge my power pack there and teather to my phone to access my bank account, but you do as you please. You've at least heard of skimming at the pump? Why would anyone use a debit card at a fuel pump, right? What's the difference between the two, really?
Also, most data is stolen because it's easy. Hackers are not targeting YOU. Sure, you can save a few bucks on that Kodi, only at the cost of adding a back door to your house. Sure, mom is nice and safe paying those bills on the same wifi network as the kodi. Most hackers don't actually hack anything, they just target people who haven't run their security updates, have outdated smart TVs searching for updates, pirating content and so forth.
Studies have shown that for about $4 per person per month we could make every interaction we perform online completely private, but those cookies used for data mining are so tasty, and did I mention they are free?
I am not wreckless with my data, sticking with only known wifi, no pirated content, etc and I can still think of a number of ways my data could be easily breached.
Thinking it's not all that simple? I had a friend locked out of a windows PC. It took me 30 minutes to research online how to create a Umbutu usb boot drive, change the boot order of his laptop and run linux software on the device to not just grain access to his windows but EVERY password saved on the computer, and I have no background in software, just curiosity and an internet connection.
So don't just walk up to someone and say, hey, mind holding this device of mine? Don't look at anything inside, the password is password.
Sure, it's simple to not use that device to access your bank account. Except I hacked your yahoo account, and submitted a password recovery request to your bank, which sent you an email so I know which bank, and now I just made myself a new password. Maybe mom has 2-step authentication?