Girls or boys under the age of 18 to 20 years are not mentally matured.

They don't have anything bothering them, they are only after slaying in the social media, watching Telemundo, African magic, and world. Some of these boys draw down their trouser to the tip of their buttocks displaying their boxer in the streets.

They are experts in playboys and playgirls, stocked in their ex, typically mama's or daddy's baby, they go to every nightclub, they have no idea for their future, doesn't think about career always concerned about the money you will give them as a tip for makeup, leggings and latest earpiece.

They don't know what they want in their relationship and still will end up hurting you the most in the relationship.

They don't give attention and commitment to the relationship, just thinking about what she will benefit, the shawarma in the street, the latest gadgets in the computer village, the best designer clothes and shoes trending in jumia.

They hardly contribute to your future, even when you bring up the idea, she will be confused about how and where she will start to contributes to it.

The category of people that are mentally matured for relationship or marriage if you want to enjoy your union start from 25 and above.

Their life thinking and faculty of thoughts have improved, except in a situation where the person is dumb and doesn't care about it.

The fact is that women in 30 years and above think better and matured than those below 30 years. This category has had mental life experience which came from different life challenges.
The ten years different is a ...https://allsinglesandmarried..com/2020/04/dont-date-anyone-in-this-category-of.html?m=1

Allsingles:
Girls or boys under the age of 18 to 20 years are not mentally matured.

people under the age of 18-20 are NOT suppose to be mature (mentally or otherwise).... duh!