It's a copypasta, so luckily for you - source

First of all, i'm not a pedophile, just to get that out of the way. I am however a libertarian, and I believe that the starting point for all rights should be that of liberty and freedom.

When it comes to debating the age of consent, I usually hear people saying that children under X age are not capable of being able to consent. The problem with this line of argument is two fold:

Firstly, it differs from culture to culture. For example, in a lot of American states the age of consent is 18 and sex at 16 would be considered harmful by virtue of the children being incapable of consenting. Then you have >other countries like the UK where the age of consent is 16, who make the same argument, that sex at 14 or 15 is harmful.

The scientific basis for the argument that X age is too young is the relatively late development of the pre-frontal cortext in the brain, which scientists generally agree doesn't stop growing until a person is about 25. The late >development of the pre-frontal cortex does not render young people unable to consent, it just means that young people with an under-developed pre-frontal cortex are more likely to make impulsive decisions. That is just as >true for an 18 or 19 year old as it is for a 14 year old and this seems to have no impact on the age of criminal responsibility, which in the UK for example, is as young as 10.

Germany has lower rates of teenage pregnancy than other European countries with higher ages of consent laws and I feel like there would be ample evidence at this point, if 14 really was too young, to support that theory.