It all depends on what kind of need you are talking about OP. There are those like given examples above and then there are those more like me who have no other real stress outlet and who have a lot of stress that sex(I'm including masturbation in this)is the only safe way they can relieve even some of that stress to help them live a longer life. (and what I mean by safe way is I could go start fights and get the shite kicked out of me and possibly killed to relieve stress but I choose not to because I don't yet want to die and I don't want to be arrested or put into a hospital).
Also OP, you are young, so don't necessarily start worrying yet if your sex drive hasn't kicked in yet. Sometimes it takes longer for it to kick in.
Also OP, you are young, so don't necessarily start worrying yet if your sex drive hasn't kicked in yet. Sometimes it takes longer for it to kick in.