I think anyone should be encouraged to try Linux, as long as they wont rage-quit when they find they can't run Windows programs or when Linux turns out to be wildly different to Windows.
Originally Posted by Linuxisfast
On-topic: There are no Linux viruses, so there is no need for antivirus. Ubuntu doesn't listen for incoming connections unless you install something that listens, so there is no need for a firewall. Besides, you probably already have a firewall in your modem.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.