I had security drummed into me as a kid in the army (AR 380-5). I understand the convenience part, which is why I find it convenient to buy those little memory sticks. I own several, and can take data anywhere I want. I just do not understand todays crowd, not caring what they give to someone else to store for them, or what they say on places like Facebook or email for that matter.
Yup, I’m the same way. Everything is on my local machine, my backup external at home, or on usb drives I have. I have a box account, and I use it for work files that are too big for email (AV business, we have big ppts and videos, with corporate limiting email attachments to 25Mb each). But that’s it.
I can see the practicality for non-secure stuff like family vacation/wedding/etc photos, or the like. Stuff you want to share easily and don’t care who sees it.
Ideally, you would buy your own server, have it at home, and can then access it from anywhere yourself. But that requires a bit of $$ and a bunch of know-how that most people don’t care to learn.