This is correct. You’ll never know. Even Harvard vs Hofstra, or Stanford vs Samford - no one can say what will happen.
Others would have correctly pointed out that you could study what you wanted vs maybe being able to. That’s why people would have said what they did.
She put a school above major. In her case it’s had a happpy outcome. Congrats to her. Another might not have been happy with Econ. I personally believe in major over school but everyone is different.
Things have a way of working out if you’re a grinder, a tail busting individual. And obviously she is.