I think its an attempt to cut back on health system costs, disguised as well meaning measure.
Up next alcohol bans. One might not even numb oneself while beeing a slave to the "allways right" generation vampire.
Alcohol was always an important cultural symbol (drinking wine as a Christian, for example). This is not the case for tobacco, especially highly artificial one.
Tobacco is inherently bad for one's surrounding as well.
Correct, and since the UK has an Established Church, and does not recognise “freedom of religion” as understood in the USA, banning tobacco entirely is reasonable.
Tobacco is inherently bad for one's surrounding as well.