For so many people in this world, just go to the Dentist in Baton Rouge already hard enough. The most common reason is because there is no nearest dentist in their community area. If they want to go to the dentist, they have to go to the neighbor town which 60km away. I do not know about another country, but many areas in America have a shortage in dentist. The second reason is because they simply do not have any time to go to the dentist.
If you have someone else whom you can ask to bring your kids to the dentist, then it would be perfectly fine, but the problem here, not all families can afford to hire a baby sitter or a caretaker for their kids. Among all of those reasons, the greatest barrier would be the cost and the lack of insurance cover. Most people simply can not afford dental cost.