People dont give general dentistry enough credit. There is so much to it and people really oversimplify and make assumptions. We are not simply tooth mechanics, there is alot to learn about diagnosis and pathologies.
General Dentists refer cases to specialists for what is outside their abilities and scope. That means that as a General Dentist, you can become proficient in the areas you enjoy. That includes diagnosis AND treatment.
Many pre-dents and dental students talk about OMS because it's the "sexy" specialty. Yes the people who get into these programs are very intelligent, driven, and motivated; very impressive. But, it doesnt mean there aren't VERY good general dentists who do very well.
As mentioned earlier, if your interest is extractions and implants and not in a hospital setting, OMS isnt for you. Is it really wise to go through another 4-6 years of HARD training to learn about procedures that you'll have no interest in doing? For me personally, I have never had interest in OMS because of situations like cutting open a child for BSSO, or trying to put together the pieces of a child's face after they've been beaten senselessly by an adult, or fell out a window, or crushed between two cars. Or what about a radical neck resection on a wonderful, sweet pediatric patient who you know will not survive long? I have a soft spot for kids. Anyway, it wasnt worth it for me to put myself through the stress of all of that training and procedures to not even want to use them when I finish.
I thought I had all the specialties figured out too, but it wasnt until I really worked closely with all of them that I had a better understanding. For example, Prosthodontics is really impressive, the things they learn about when it comes to diagnosis and tx planning says alot about their training. Same goes for Oral Pathology. They learn ALOT about medicine; the breadth AND depth they know is mindblowing. But most predents and DS's aren't interested in other specialties because they think they dont have the same earning power as ortho or OMS. Or that if you're just a general dentist then you weren't smart enough to specialize or wont make good money.
If your goal is to make lots of money, specializing is not the only way to do it.