Do I go to jail for first time larceny charge?

You will not likely go to jail.

I can't answer definitively, but in my 22 years of practicing criminal defense, I have never had a misdemeanor or felony client go to jail on a first offense theft charge unless that person stole a lot of money over the course of several years.

Following the arrest of a juvenile offender, a law enforcement officer has the discretion to release the juvenile to his or her parents, or take the offender to juvenile hall. The county probation department, the agency responsible for the juvenile hall, has the discretion to accept and "book" the offender or not, in which case, the disposition of the juvenile is left to the police. Because the state's juvenile halls are overcrowded, mainly with juveniles being held for violent offenses, juvenile halls may accept only the most violent arrestees, turning away most other arrestees.

You are eligible for Youthful Offender Treatment and will not go to jail. The more important issue is whether you will have a YO conviction which will effect your chances of getting a decent job, especially with police, FBI, or for city, state, and federal government positions. You must make good decisions and not commit crimes as that will ruin your future. Retain a good criminal lawyer.

It's possible under the law, but since it's a misdemeanor and your first offense, the odds of you going to jail are the lowest they could be. However, you never know how your particular judge will decide to handle the matter. You may be eligible for a diversion program which would keep the matter off your public record. Consult with an experienced criminal attorney in your area for a review of your case, options, and likely outcomes.