I don't live in the city. Not a proper one. I live in the only city in Cornwall.
I am 17. I have been threatened with a knife once and calmed down an incident with a knife where one friend was ready to knife the other (successfully). I have had someone tell me through other people to stay off their turf or they will come for me.
Where I live gangs aren't formal and they aren't divided by location. They are drug orientated and divided by who you know and who you're with. Once you're in with a crowd they inform you who is trouble and whose not. Some people are notorious, like one guy who is called Craig (the guy who threatened me).
Everyone knows me. People know me before they meet me. I am in with a certain crowd (well used to be) and I just have to mention their name and anyone backs up. What was my best friend was the hardest girl in her school and so no one starts fights with me unless they have a weapon. Personally I carry no weapons, start no fights and try to get on with anyone! However I have been identified before as oh yeh, you're in with Amy aren't you *suspicious look* We did alot for each other and it was our 'family'.
People fight each other, go round people's houses to 'sort things out', explain why you shouldn't push things further and in one incident, pay for people to 'disappear temporarily' (bundled in a van, beaten up and dumped in a rural area after 4 or 5 hours of drivng).
In contrast my family is from London. When I was little my dad wrote me letters (he lived up in Catford while my mother lived down here) in which he described high speed police chases, him picking up a knife and running at a burglar who broke into his flat and racist attacks on our friends who lived on the same road. My cousins tell me off when i go to visit for looking at people on the tube (they're not sound) and have told me there's gang warfare that start's in schools and escalates when you get older. They aren't involved except one cousin who dealt drugs.
Gangs are a problem wherever you go. Why does it matter if you ban guns when you can go in a kitchen and pick up a weapon, that's illegal to carry, take it out and commit violence. Human's mentality is to stick together and try to be dominant, traits that are displayed from pre-school to old people homes.
Oh and before anyone mentions poverty and ignorance and stuff. I am middle class, my father was a surveyor and my mother is an art teacher who decided to be a carer as it was more rewarding, I grew up in a victorian semi with an acre of land. I was state educated and have 9 GCSE's and am studying my second year of college, I've been told consistently since I can remember that I am a university candidate and that a degree is part of life. So poverty isn't the only factor in gang problems.
I am well aware of the consequences of these problems. I live away from home (have done since 16) and I am scared of being in a house alone. I can't sleep very well at night (for two months I was phobic of sleeping in my own bed and the guy was with had to help me work through it), I have nightmares all the time, I obsessively lock windows and doors and I get hysterical when the guy I'm with produces guns or knives (he has two bb guns, one with metal pellets that can split the skin, a throwing knife and we have loads of knives in the kitchen) or messes about. I have cried and cried before when he jokingly pointed a gun at me (he'd never fire) and I will scream and curl up if he spins round with a knife in the kitchen.