My sons are grown and on their own and they still stand clear of it. They used to sneak play it when they were teens and were unaware of the delay on start up and turned it all the way up, only to have their eyebrows blown back to their a-holes and that scared them away from it for awhile. Ended up giving that same gear to one of them a year ago or so.
Now it's grandkids, and I have instructed the parents that they are not allowed in that living room without direct and present, adult supervision. The real challenge with that being, those adults always have their heads up their phone-asses and details of all kinds, slip through the many cracks that tends to cause these days. They have slipped a few times and I have found evidence of contact with my gear, and since the limitations were understood and agreed upon beforehand, gave me license to be a total d!ck about it. I have one tiny section of my house that I can fully live in, outside my bedroom, and there are no exceptions or leeway there.
Since most of my stuff is DIY now, an accident would not really be a disaster since it would at most be a replacement part but, kids, and some grownups, really need to learn to be considerate of such things. Especially if they have no stake in the game, whether it be mine, or their own. So, when something happens, I ask them; "What do you own that you really care for?" I mean, other than your phones, obviously? Nothing? Ok then. Get out.