One Fifth Harmony members really loves the Minions a lot! See proof here. The ladies of Fifth Harmony are all considered legal adults since they range between the ages of 18 and 22 years old, but how mature are they? What Has Fifth Harmony's Lauren Been Taking An Abundant Amount Of Pictures Of In Europe So Far? Well, we would say they definitely are mature young ladies that care about important things such as Lauren Jauregui's apparent passion over political views and the entire group's constant compassion for fans of all genders, races, etc.