I`m still in favour of control rather than a ban, I think banning disposables would just be lazy governance, there are restrictions in place that if properly enforced would see most if not all the problem go away.
It is a fact that there are would be smoking quitters whose first alternative is the disposable vape.
I dont know how the German government managed it but my argument against a tax on zero nicotine juice would be that it could be sold as face, leather or wood nourisher and take vaping out of the equation.