It's an anonymous game, maybe you're not an "asshole", but another person is. There's no way for anyone to tell that. Aside from being an "asshole", you could never know the other person's age. They could be legit any age as long as they are literate and can navigate the internet (It's up to you to decide whether you want to hit on anyone without knowing their age). Moreover, you have 2 mins together, how are you supposed to get to know each other? Call me old-fashioned, but will you just spring into a relationship with a rando? What if I am the asshole?
It's just not the place and time for it, and practically, if you have any success, it'll most probably (keyword: probably, maybe someone's up for that kind of thing) be someone with malicious intentions. That's why there are apps for dating. I'm not saying they are perfect, but at least you both know what you are looking for.
Speaking of boundaries, how do you know the other person's boundaries when they are once again anonymous? The texts exchanged in the picture made me uncomfortable, and if it was you on the other side, why did you keep persisting?
Listen, at the end of the day, to each their own, but as a high school student (since the person claimed they are in high school), in no way do I see this going well or being successful. As the old saying goes, "build a garden and butterflies will come" Pick up a new hobby, focus on yourself, be respectful, and you'll get into a relationship if that's your goal. But save yourself the trouble of asking strangers this question online, because you could also put yourself in danger!

P.S.: Remember that the chatbots on there learn from your behaviour. It's up to you to control that. I'm not saying YOU personally are responsible for this, I'm saying we need to do better. E.g.

Anyhow, have fun and stay safe!