There's a big difference. It is normal to be attracted to teenagers and maturity is something that happens in gradations but yes in the U.S. our legal line is 18. There are a number of other countries that have ages of consent lower than ours, sometimes several years lower. And although no one has so far in this conversation people should not be using the term pedophilia about this which refers to an attraction to prepubescent children. Look at history, listen to music, look around the world