Love / I want to bring her here but not her son. [9]

My girlfriend and I are planning our future together already. I'll be applying for a visa so I could bring her here and we can marry each other. It's a pretty straightforward plan for the both of us because that's how we deal with things all the time. There's one a minor problem with this said scheme, though. She wants to bring her son from an ex-lover with her and I don't want that.

Don't get me wrong. It's not that I don't like the kid. I just don't want to have any delays with the processing of her papers. I know she loves her son a lot, but I also know that bringing her son here would slow down the whole immigration procedure. Maybe one day she can bring him here, but not now.

I was also thinking that if she goes here alone, we can start our own future with just as two. We can send her child money for his needs. I have the money to support his monthly financial needs so she has nothing to worry about. Though, i need to know if my view of things is acceptable. Is it okay to keep her son in her country? Is it more practical to send monthly support?

My brother was in this situation too. He met the girl during a romance tour and he flew her in about half a year later. Up till today, his step son is still not here in the states. Should I just follow his footsteps? I need to know what's the right thing to do in this situation.