Taxes pay for parks, libraries, nature preserves, swimming pools, schools (with after-school sports, musicals, various clubs), museums and galleries. Many local organizations receive grants from taxpayer money to provide services and activities for teens.
Within a 10-mile radius of where I'm sitting, a teenager could skateboard at a taxpayer-funded skate park, swim at a taxpayer-funded pool, read a magazine at a taxpayer-funded library, play basketball on a taxpayer-funded court, walk through a tax-payer funded art gallery, etc.