>>/135979/
She's not entirely a shit judge of character. She's picked some winners here and there imo. 

No person here is privy to her personal relationships enough that they know everyone she's talking to and who treats her well. 

The guys here who assume that she's being treated poorly by everyone she talks to, also assume that they would treat her better but she's refusing to give them a chance. 

She is allowed to make mistakes. That's to be expected of anyone at her age and it's necessary to learn lessons that she'll carry for the rest of her life. The hope is that she won't ruin her life in the meantime. You can't live her life for her that's simply not how this works. 

So if you genuinely care about her, her well-being, and want her to have a better life, then remain supportive while earning her trust and then being an advocate for her to make the right choices. But dont try to force them down her throat. Then she'll never listen to you because you're suggesting that she's entirely incapable of making decent choices, and that you know what she needs in her life, better than she does.