Some people will argue just for sake of arguing. I know. I'm guilty of it sometimes too.
The girl wants to pursue a career or at least seriously consider whether she WANTS to persue a major time investment in photography.
She needs a D(SLR). Period. This has turned into a silly discussion just for argument's sake and while you guys are enjoying it, it could easily confuse someone reviewing the thread for actual information.
You need a viewfinder with information. She needs to be spending her time learning the relationship between light, exposure and time when the bright sun is at her back (as it should be most of the time to begin with outside, BTW), not spending her time trying to figure out how to get enough shade on the LCD to be able to read it. Period.
You can argue about it until the cows come home. Go ask virtually any professional worth his or her weight and they will tell you that a D(SLR) is what this young woman needs.
{off soapbox}
I'm not disagreeing. But to be fair, SLTs and some mirrorless have viewfinders quite comparable to an optical viewfinder. One can even say that an EVF is more valuable -- such as viewing a live histogram.