Maturing Scalp?

Hi, im a 20 year old male and have noticed signs of either balding or a maturing hairline. my hair is fair and has always been fairly thin as it runs in my family on my mothers side, but it seems rather selective, she has 6 brothers and 2 of which are balding and started at my age.

my question is, can a maturing hairline include thinning all over the scalp, or only in the frontal areas? because the thinning i have noticed is also in the crown area.

If you are thinning in the crown, then you probably have more than just a maturing hairline. Frontal and crown thinning and recession is a sign of genetic patterned hair loss. Get your hair and scalp mapped out for miniaturization and you will know what is happening to you.