B.K.
I do agree, its genectics. I am 35 and have never had a cavity. I have never needed any dentist work done other than a cleaning. My son 10 years old no cavities either. My husband has had cavities and my step daughter has had lots of cavities.My son and I have great teeth but husband and step daughter not so much. My mom had lots of dental problems her whole life too, but not my dad he had good teeth. Genetics definitly. Hope this helps.