you took my answer! 
but mystee's right, know them first, take ur time, unlike most
couples, VERY young couples just date on impulse, just caring for
the outer side while not thinking about the inner side, thus
causing more sadness in the aftermath i.e. unplanned marriage,
unplanned pregnancy, breakup which lead to suicide, depression and
more.
everyone wants to have a gf/bf becos they see one on the streets
and envy comes... but hey, humans are born to envy too 