I was someone who grew up in the west and always associated khat consumption with negativity. Then a few yrs ago I tried it while I visited family in Hargeisa. Surprisingly, I really enjoyed the buzz I got. It made me more sociable and I had some really interesting conversations with strangers I met in the town marfish.
Like with most things i.e. alcohol for gaalos in the west, it needs to be done in moderation. I don't see any harm in people chewing once a week on a Friday after a stressful work week to socialize with friends. That's just my perspective anways.