Well, yeah, because 'unsafe' is the important word there. Chris has proven himself more than willing to take sexual advantage of an elderly woman - more to the point, his own mother. Already, lots of people on this board have said that they'd fully expect Chris to fuck a child, if he got the opportunity.
True or not, Chris has made himself into a high-risk individual. Just because he's not roided-up, carrying an Uzi and with an IQ of 150 doesn't mean that he can't be seen as dangerous in rather more personal ways. TL, DR - no one's gonna trust Chris not to try molesting them ever again. The real irony here is that it's all his fault, and he'll never admit to that.