Meh. I would get it...but i'm not a fan of buying stuff online. Neither are my parents 
The transaction isn't done directly, first you download the trial, then you buy the liscense.
Buying the liscene is done through a third-party, one that specializes in business transactions, proofs, liscenses, etc.
When you get to that page, just read the disclaimer and "About Blah Blah Blah" as well, and have your parents read it as well.
They are very nice and helpful people. When they recieve your card info, etc., nobody writes it down, it's stored in a database just like in any physical transaction when you go to a store. Since they work with thousands of businesses I doubt their security system is weak. Not to mention if a hacker skilled enough to gain access to their database existed, the chances of him opening your information are like 1 in 1,000,000,000,000. So the odds would be in your favor.
I lost my liscense, emailed customer support with my name, what I bought, when I bought it, and card number, and they sent me an email (written by a human being btw) containing the liscense and offering help if I needed it. They even said good luck lol. Nice people.
And I know what you're thinking, "You gave them your card number? Are you crazy?" No as a matter of fact, I gave them nothing of value. If someone gets ahold of your card number, they can't do squat. Not unless they have either your social or the card confirmation number, and the expiration date, etc.
That's a common misconception about giving people your card number, it only works if they have the rest of your information, which isn't needed.
When you go to a store and buy something with, say, a credit card, it works the same way online, to the dot.
The only difference is that the data is electronic.
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