It takesage (genetic triggers occur in family lines) so you need to find out when yourfather or grandfather started to grow their hair. Your hormones should havekicked in nicely by now, so you must wait out your genetics. Beard transplantscan be done when you are a bit older if the hair has not grown in yet
You need to wait a few years to see if it still grow out. Some people are grow facial hair a little later and it is normal. If in a few years you still don't grow facial hair, you can consider hair transplant as it is very successful if done by an experience hair restoration specialist.