When did you start your first job?

I'm 15 almost 16 (in the summer) and I'm thinking of maybe getting a job. Is it a good idea to start working at 16? When did you start? If you think it's a good idea where should I start... food place, mall, library, etc?
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I was 14. I worked at like a corner store type of thing. Loved it. The mall sounds fun, a library would probably be boring. A grocery store or restaurant may be good options?
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14 worked on a tobacco farm (stoop labor)

--Lasted three days
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I worked at a burger fact ory.
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I started at 17 at Ice cream shop in high school