This is true. I won't deny this. But banning it won't solve the problem. All it will do is create a black market. Most khat is sold by poor women who have no other work or ways to make money. Making it illegal will take that money away from them and give it to criminal gangs. Instead we need a cultural shift that emphasizes responsible khat use.It broke families and marriages because of the addiction the man will spend his money in buying khat instead of feeding his kids. Or spending time with them.
The representation you posted is very questionable. One also needs to consider (1) the fact that khat is not a well-studied drug, so the effects it has on health are not well known, and (2) being less harmful than other popular drugs does not help one draw any meaningful conclusions.I was answering her question on why Somalis chew instead of drinking tea/coffee. Look at the chart I posted, khat is the weakest drug that you can take.
The khat trade creates lots of jobs for Somalis. They are grown by foreign farmers but the exporting and distribution is all done by Somalis.
The ones who sell it are mostly single mothers. Would you want them to not be able to afford feeding their children?