Why jump from one extreme to another. Some people wish to use it as a recreational drug, just as they do with cigarettes. Banning the substance is not the answer; it will only create pushers, jail more users, waste police time.
Why not make it less available:
1. restrict the number of outlets (say 2 in Pattaya, 4 in Bangkok, etc) by charging a huge licence fee, to the highest bidders. 2. charge a very high duty on the sale of the product.
Like cigarettes the product should not be flaunted to the sight if non-users and children.