Bans
See also: Chewing gum ban in SingaporeMany schools do not allow chewing gum because students often dispose of it inappropriately, or because it might carry diseases/bacteria from other students and is distracting to others in the classroom by smacking.
The Singapore government outlawed chewing gum in 1992 because it was becoming a danger when wedged in the sliding doors of underground trains. However, in 2002 the government allowed sugarless gum to be sold in pharmacies if a doctor or dentist prescribed it.
Disney, Universal Studios, Seaworld, Amsterdam Schiphol Airport, and Busch Gardens Theme Parks have banned the selling of gum to help keep the grounds cleaner.
Read more about this topic: Chewing Gum