HHHAHAH......ok, before you start praising dentistry as the "perfect profession", you have to consider the whole picture. You were quick to mention all the advantages of becoming a dentist, but remember, there are many disadvantages as well:
1. confined in one small, tiny space all day.......having to use your hands all the time, when your manual dexterity might not be the greatest
2. Monotomous work
3. Many people are afraid of you and have this image that your sole purpose is to inflict pain (could lead to psychological effects)
4. although, being your own boss sounds great, it can be VERY VERY stressful, and without organization (like with any business) could lead to failure or breakdown....billing, hygenists, attracting patients....you have to oversee all of this
5. Looking at nasty teeth, poor oral hygiene, lots of blood.....may not be some people's cup of tea
6. Chronic back pain
7. Due to social perceptions and that damn Seinfeld episode, dentists for the most part, although respected healthcare providers, are considered inferior to medics....
Thats all I can think of right now. If you look at these negatives and think that they arent so bad, then hey.....of course dentistry is a great profession!