You are generally supposed to go to your primary care doctor (general practitioner) every year, at minimum, as an adult.
Infants go to see a pediatrician at much shorter shorter intervals, which is also due in part to vaccines and the need to check for developmental issues. Young children go in for checkups more frequently than adults to spot developmental issues (parents need to know developmental milestones backwards and forwards--and also log when they occur) along with vaccines. School-aged children generally go in yearly to the pediatrician, where checks on development occur, with the exception for certain vaccines like the HPV vaccine.
No matter what, the first 5 years of life determine a lot in life when it comes to the future, so it is crucial that developmental milestones are being met. If not, these problems can often be resolved with therapy, of various sorts, and children often catch up without issue. It is important that developmental milestones occur at appropriate times at older ages, too. But, there are basic crucial things that must be done for young children like nurturing your child, socializing your child, getting an early start on education, getting top-notch healthcare, etc. that keep the child healthy (also things like personality disorders are often caused by parents not properly socializing their children at a very young age). Investing in the first 5 years of life, as much as possible, has the most potential for a family (also a society) when it comes to their children and their life outcomes. So, it can be argued that parents should have substantial paternity leave so that the human potential of society is fully realized in the future (I am not a parent myself, and I cannot have kids, due to health problems).
Infants go to see a pediatrician at much shorter shorter intervals, which is also due in part to vaccines and the need to check for developmental issues. Young children go in for checkups more frequently than adults to spot developmental issues (parents need to know developmental milestones backwards and forwards--and also log when they occur) along with vaccines. School-aged children generally go in yearly to the pediatrician, where checks on development occur, with the exception for certain vaccines like the HPV vaccine.
No matter what, the first 5 years of life determine a lot in life when it comes to the future, so it is crucial that developmental milestones are being met. If not, these problems can often be resolved with therapy, of various sorts, and children often catch up without issue. It is important that developmental milestones occur at appropriate times at older ages, too. But, there are basic crucial things that must be done for young children like nurturing your child, socializing your child, getting an early start on education, getting top-notch healthcare, etc. that keep the child healthy (also things like personality disorders are often caused by parents not properly socializing their children at a very young age). Investing in the first 5 years of life, as much as possible, has the most potential for a family (also a society) when it comes to their children and their life outcomes. So, it can be argued that parents should have substantial paternity leave so that the human potential of society is fully realized in the future (I am not a parent myself, and I cannot have kids, due to health problems).