3 rd practice

Walking in the evening on weekends is sometimes difficult in places like parks, because it's fashionable among teenagers to go there to get drunk. Alcohol in that ages is very dangerous because they don't know when to stop and it brings violence, a false bravery that makes them insensible and tons of rubbish.
To eliminate the violence and inconscious teenagers that can be found in the streets caused by alcohol, we could try to make the prices of alcoho higher so that not every kid in the worls could buy a bottle. Violence would stop temporarily but people might find other ways to find it, for instance, on the Internet. Probably a better solution could be undercover polices were sent to those shops where it is believed that alcohol is sold. When they found evidences, they could fine those shops. Moreover, with the end of shops selling alcohol illegaly, the teenagers in parks and the rubbish they produce would finish too.
In short, the best option to end up with problems caused by teenagers getting drunk in the streets would be fines to those who sell the alcohol in a not legal way.