There are a lot of things which young people aren't allowed to buy, some of these things are regulated by law. This means that you are not allowed to buy them and shops are not allowed to sell them to you. Some of these things include alcohol and cigarettes to mention a few (they are all in the underage sales section).
It is important to remember that these things are regulated to protect your welfare and to keep you fit and healthy. Sometimes you might feel as if you are missing out but the age restrictions are in place so that you can make a responsible decision about yourself when you reach that age. Don't forget that it's also against the law until you reach that age!
If you help to stop underage sales, not only will you be helping to prevent serious accidents and even death, you will also be helping your local community. If shops didnt sell products to underage people, there would be less crime and disorder, more money would be saved and could be spent on other things such as improving hospitals and schools to name a few.
There are many ways in which you can help, look at the "Stop Underage Sales!" section to see how.