Yes, there are coin-operated vending machines in Flensburg. These machines can be found in various locations such as train stations, shopping centers, and public buildings. They offer a variety of products including snacks, drinks, and even everyday essentials like toiletries and phone chargers. Customers can use coins to make purchases from these vending machines. **

Self-service can be considered normal for a 12-year-old depending on the context. At this age, children are typically gaining more independence and responsibility, so being able to handle certain tasks on their own, such as serving themselves food or managing their personal hygiene, can be appropriate. However, it is important for parents or guardians to supervise and guide them as they navigate these new responsibilities to ensure their safety and well-being. **

At the first coin-operated vending machine, which was created in the early 1880s by Percival Everett, customers could purchase postcards for their money. The machine was installed in the railway stations and post offices in London, and for a penny, customers could receive a postcard featuring a picture of the surrounding area. This early vending machine was a novelty at the time and provided customers with a convenient way to purchase postcards without the need for human interaction. **

To become self-employed as a vending machine operator at the age of 18, you can start by researching the vending machine industry and understanding the regulations and requirements in your area. Next, you can create a business plan outlining your goals, target market, and financial projections. Then, you can secure funding for purchasing or leasing vending machines and finding suitable locations for them. Additionally, you will need to obtain necessary permits and licenses, as well as develop a marketing strategy to attract customers to your vending machines. Finally, you can start operating your vending machine business and continuously evaluate and improve your operations to ensure success. **

One can retrofit age verification for vending machines at the point of sale, by installing age verification technology such as ID scanners or biometric systems. This can be integrated into the vending machine's payment system to ensure that only individuals of legal age can purchase age-restricted products. Additionally, age verification can also be added to the vending machine's interface, requiring users to verify their age before making a purchase. **

Cigarette vending machines in many countries are required to have age verification systems in place to prevent underage individuals from purchasing cigarettes. These age verification systems can include methods such as requiring a valid ID or using a PIN code. However, it is possible that there are still some cigarette vending machines without age verification in certain locations, especially in areas with less strict regulations. It is important for authorities to enforce regulations and for businesses to comply with age verification requirements to prevent underage smoking. **

Age verification at cigarette vending machines typically works through the use of a government-issued ID, such as a driver's license or passport. When a customer approaches the vending machine, they are required to insert their ID into a scanner or present it to a camera for verification. The machine then uses technology to verify the age of the customer and only dispenses cigarettes if the customer is of legal age. This helps to prevent underage individuals from purchasing cigarettes from vending machines. **

The answer to this question depends on individual preferences and needs. A cashier-operated checkout provides the opportunity for human interaction and personalized service, which some people may prefer. On the other hand, a self-service store offers convenience and efficiency, allowing customers to complete their purchases quickly and without waiting in line. Ultimately, the better option is subjective and varies from person to person. **