First, my parents are both deceased, so if I saw them now, I'd probably scream ""You're dead! Aaaahhhhhh!!!!" and jump out the window to flee for my life.
Assuming they were still alive I'd point out that I'm in my 50s and can look at whatever I damn well please.
If I were still a minor(and therefore my parents were younger than I am myself in reality), I'd be more likely to be caught looking at Playboy magazines because computers didn't exist back then. I believe this actually happened to my brother once; it was no big deal as far I can recall (though of course since it wasn't me who got into trouble the details are hazy in my mind).
But assuming computers had existed, this would not happen to me because I have hearing like a dog and we lived out in the country where it's pretty quiet, and no matter how I focused I am I could not possibly be caught this way.
But assuming I was super absorbed and somehow got caught, I'd say "Better to learn this now in the safety of my own home than out there and maybe make a big mistake."
In any case, I'd have been a lot more worried being caught DOING it than just reading about it, as I got tied up pretty damned often as a kid! However, as my brother was the older and usually was the one who tied me up, he was the one who caught all the flak when this actually happened when I was 8. And luckily I was NEVER caught at it when I had TUGs with my cousins and friends after I moved. Well, except once by a cop when my cousins unwisely tied me up in a public park at night but I wasn't the one to catch Hell for it then either; I was tied up and therefore presumably I was the victim.
That's one of the advantages of being the one who is tied up when you're caught I guess... nobody blames you but instead blame the one(s) who tied you up!!!

Dare to be different... and make a difference.
To boldly go where no one in their right mind has gone before...