I almost pity my older brother?

My older brother is 27 and lives with me and our parents and other older brothers. He has a routine of sleeping a lot(on the couch even though he has a bed in his room), waking up and playing video-games with his friends on same couch, drink, then repeat. I rarely see him reading or studying anything, mostly scouring facebook posts or listening to music. He isn’t trying to get a job, and it makes me worried. I want him to be able to branch out in life and have a life of his own where he isn’t financially dependent on his parents anymore.

I would not say pity, because it’s not as if his lifestyle is “inferior” as that word would give him to be. I just mean to say he isn’t living to his full potential due to his mental state(he has anxiety and seasonal depression, along with alcoholism) and it makes me sad, as his little sister. I want to see my big brother do amazing things and support him to be the best person he can be.