Maybe. Again, he’s always had the criteria of 18+ for his sweetheart and been very adamant about it. If Chris ever has sex with someone underage (I’m very doubtful he’s ever get to have sex with anyone except prostitutes ever again) it’ll be because he’ll unknowingly fucks a 17 years-old rather than some kind of inherent pedophilic desire or leaning.
I'd guess Chris' <18 taboo is the same as the no prenuptials taboo. Chris sailed right thru into legal age without any perceivable understanding what that entails. In a RL sexual encounter, Chris would either not give a fuck about an underage partner if this is not obviously visible, or uphold the 18+ in a ritual fashion and literally to the minute.
These are the sort of social constraints that Chris' brain is incapable of figuring. Chris has shown disdain for age of consent, but there seems to be some hard limit to outright pedo. There is no focus on lolis either. So Chris seems to be grasping (albeit a bit loosely) the biological concept of sexual maturity, but the concept of age-of-consent is one step too much away from raw biology and out into cultural conventions land where the Normie sub-humans roam. Faced with such a dilemma, Chris will do one of 2 things: Either discard the offending constraint entirely, at best keep it as a mere token devoid of any meaning and content. Or weave it into the Sonichu universe prominently, and mystify/sanctify it.
Example: Bigamy taboo. A social convention that is in itself not out of any biological necessity. But there is an
underlying biological necessity: to not fuck around too much, lest the ratio of caretakers to infants becomes too small to ensure sufficient transfer of cultural information, leading to lineages going extinct in the most hilarious and stupid ways.
Chris understands the need of providing infants with sufficient care like any run-of-the-mill mammal. But why specifically choose monogamy to resolve that need? There is no inherent natural drive in humans operating at
that level of social detail; it is an acquired and enforced taste. So Chris cannot figure it. But given the cultural conditions in Chris' environment, it would seem, to a mind like Chris', that there is some higher, metaphysical, spiritual or divine connection to it.
And thus the Boyfriend-Free Girl in all its glorious caps was born.