People Online Are Pointing Out Signs That An Adult Is Not Acting His Age, So Here Are 27 Signs Of Emotional And Mental Immaturity

Dating a significantly younger girl and then lying to his mother and friends about your age because he’s not comfortable with telling them your real age because deep down he knows it’s wrong (an actual experience)

Gets angry at you after you tell them the way you feel during a disagreement.

Using all kinds of excuses to act poorly. His mental health, his parents, past relationships, you, etc etc. All people have their scars but an adult recognizes them, takes ownership/accountability for them and takes action to make themselves better.

Controlling, jealous, lacks consideration for the input of others, can't or won't take care of himself, can't fathom somebody having a different opinion than him without taking it as a personal attack, continually dates women or men a LOT younger than himself, can't stand opposition or to be told no, blames others for his own actions, angers quickly and/or violently, and can't hold down a job among a few.

When he's lived at his apartment for a period of time & it looks like he just moved in. Stuff still in bins/containers. A single couch, TV, & gaming system in his living room, little to no other furniture. No pillowcases, sheets on the bed, or just a mattress on the floor. Nothing on the walls except a few Kobe Bryant posters. Piles of laundry everywhere, piles of dishes everywhere. Hanging bed sheets in place of curtains, or no curtains at all. Messy floors & counters, stains, etc. Only knows how to cook kraft dinner & frozen pizza.

When he cannot give a straightforward answer

Ghosting, Lies