How little you know. Summers off is a perk, but most teachers work far more than a standard week. They need that time off to recharge, but most are also taking classes, often paid for out of their own pocket, to keep their credentials or ray to get a raise. Or they're planning and developing curriculum or materials for the coming school year. To say nothing of the arduous process gone through, including a unpaid internship, to serve their community and kids. They aren't going into the field just because they get summers off. But what a sad, cavalier attitude. 

Many teachers do choose something else. Retention is an increasingly prevalent problem, and a massive teacher shortage is brewing as baby boomers retire. 

I'm not sure when your child had that happen, but ASD hasn't offered paid internships for admin in like six years, and even then, it was for a month, not a quarter. Facts are pesky things, and exaggerations are unbecoming.