Shanghai can't buy a lighter from the plane to the hotel.

sales restrictions and business considerations.

1. restrictions on sales: Shanghai airport and hotels have strict regulations on carrying articles. lighters may be regarded as dangerous or flammable, so they are prohibited from being sold or carried in airports and hotels.

2. Business considerations: the price of lighters is low, and the profit margin is small. Merchants may think that it is not cost-effective to sell lighters. In addition, some hotels may prefer to provide facilities such as smoking rooms or outdoor smoking areas instead of providing lighters in rooms.