[Users] password protection

[Michael]

No, folks, look.

They will not do log in and out. 

And the account i'm talking about already IS a private account on a private computer. In technical terms, the security already is 100% comopromised, as standard situation. It's just they don't do any tedious stuff. They leave the desktop to each other all the time. They leave the desktop online, and walk away. Or the kids ask, can we watch youtube or play games on your computer and yes, of course. Then they occupy it maybe for hours. 
Please note that it's not their concern, to begin with, it's rather only me acting out as their tech department. So there has to be the most minimal requirement to the owner, and that's only typing in a password, one time.

Don't tell me how this is wong or should be taken at the roots. Believe me: It's useless. That's just a family reality where both parents have jobs, and lots of other things up, and kids in difficult age, and they simply can't enforce any additional rules beyond the most essential basics (and not even these ...) It's probably an average chaos, with more than 2 kids.

They still are nice people, all of them, and so its simply my challenge to make it as easy as possible.