Craigslist guy lied about age

Hey guys, so I went onto craigslist personals m4m about a month ago and responded to an ad with a guy who said he was 18 years old. Sent pictures (nude) of myself, and a face photo-because of the nature of the website. He then tells me he's 16. I blocked him from the app that I messaged him through. And I have been talking to some people about this, I want to know if I can get in any trouble for this. No sex was involved, I contacted him thinking that he was 18.I've just deleted Craigslist and the social media app from my phone, but I have been absolutely miserable for the past month. What can happen? Am I at fault? The Craigslist website has the user agree to being over 18 when posting on personals.I guess I need a reassurance for this. I don't think I did anything wrong here, but I would like some insight from other people. For an age reference I am 19 so the age difference would have only been 1 year had the posting was accurate.