So your friend who didn't go to college married a guy who made good money? And how do you relate this to your argument? you said that she didn't go to college and now she has a better life, but that doesn't say much because if she DIDN'T marry her husband, would she be in the same position (going on vacations, etc etc) while working at her parents' restaurant?
It's like saying "Just marry a rich guy and you'll be fine" but that doesn't work with your particular argument that college doesn't equate to better life. That's basically saying that "because you didn't go to college you should marry someone who makes good money".
Back on topic, I think what you are trying to say is that going to college/graduate school/professional school doesn't necessarily means you will have a better or easier life. If you do what you love (like your friend working at her parents' business) you will have the better life, in my opinion. Going to school for purely monetary reasons is no way to go.
On the side note, I'm sorry about you making the decision and regretting it. Perhaps there will be an opportunity in the future that will make it all better somehow. Also, even though I'm younger than you, I do not think 29 is old at all (so don't be so negative!!
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