So this is my first post on Reddit. Obligatory "I'm on mobile, formatting issues."

I'm leaning between MGTOW and TRP. I've always been an MRA but never got too heavily involved in the politics of it. I stick with a pretty standard fare. Don't date or get involved with women if not necessary. Hook up once in a while. Don't want to take too many risks with how easy it is for women to lie about rape.

Over the years I've seen a lot of my friends, co-workers and acquaintances try to settle and inevitably get burned by women. Last year, one of the men who happened to find a woman was my older brother.

One thing immediately set off alarm bells in my head. She's only 19. Him? He's 30 with an above average income. He's definitely not a Chad. Short, unfit, a bit socially awkward. All I could think about was her being a gold digger. He's fairly careful most of the time and avoids feminists like the Black Death, but prone to women taking advantage of his good nature.

What I need to know is what she wants with him.

He's described this girl as a skeptic who's an egalitarian and like him, doesn't want kids. She's currently enrolled in college and has been insistent on paying for everything on her own. Could this be a trick to snare him in? What's her motive? Could it be purely emotional? Financial? Does she plan on cucking him? All of the above?

Is there any way to know for sure while minimizing the harm to my brother? I don't want to damage my relationship with my brother by jumping right to accusing her without hard evidence, or let her leech off of him.

Tl;dr: My brother is dating a younger woman. I'm worried that she's a gold digger. I want to know how to deal with her appropriately.