Yes. I think giving pocket money to teens is a must do. Everyone needs money at some point, even kids shouldn't be left behind. In my opinion, there's absolutely nothing wrong with giving kids pocket money to meet their little needs.
Some people might argue that giving money to children at an early age isn't a good move as it might increase their needs for money always, in other words, spoil them. But then, that's why it's called pocket money. And if we are to look at it from another angle, kids who lack money no matter how small, often gets intimidated by their pears who get money from their parents.
And as you know, pear pressure can be really influencing, so kids who don't get money from their parents will find some other means of getting what they want. In this process, things can get really ugly and such kids might end up in trouble, a situation that could have been avoided by giving them pocket money.
However, parents need to be aware of certain dangers money can pose to the behaviors of their kids. Money has the ability to influence certain negative behavior like addiction. So, it's advisable to work some type of control measures when giving money to kids.