Young cellphone users caught on to text messaging way before most people but it looks like some kids didn’t realize the cost of their trailblazing. The New York Times talked to some that have racked up service charges in the hundreds of dollars, including one high-school student who got hit with a $150 bill — “I cried,” she said. “I felt like I lost a piece of me.” Wait a minute, we are talking about cellphone charges, right?