Considering the porn industry is utterly dominated by "teenage" (in quotations because most of them are really older) girls really calls some of this outrage into question.
Not the part that if he's truly guilty, then its disgusting and he deserves to be put under the prison - absofuckinglutely he does. Just the part where everyone is saying "I'm in my 30s, anyone in their 20s is a child I can't even talk to."
Decades of cultural references call bullshit on that being the norm in our society - men absolutely sexualize and fantasize about young 20s/teenage girls. Entire multi-billion pound global industries are built around the attraction of men to younger women.
Is it right? Its certainly flirting dangerously with the line. But pretending its outside the norms of our society is virtue signaling that does zero good.
As far as anyone getting caught texting illicitly with an underage girl, it definitely takes someone thinking with their small head and not their big one. But people lie, especially on the internet, all the time. And, yeah, it'd be hard for a 15 year old to lie about being 30 and pulling the ruse off for long (but not impossible) but a 15 year old lying about being 18/19? Totally possible. Some people are good at this sort of stuff....especially in a phone/internet situation where each response can be well considered.
Anyway, presumption of innocence and all.