Can you get your drivers permit at 15?

Depends on which state or country you live in. In the United States to get your learner's permit you have to be:

14 in

Arkansas, Iowa, Kansas, North Dakota, and South Dakota, South Carolina

14½ in

Idaho, Montana, and Wyoming

14¾ in

Michigan, Louisiana

15 in

Alabama, Colorado, Florida, Georgia, Illinois, Indiana, Maine, Minnesota, Mississippi, Missouri, Nebraska, New Mexico, North Carolina, Oregon, Tennessee, Texas, Utah, Vermont, Washington, and West Virginia

15½ in

Arizona, California, Hawaii, Nevada, Ohio, Oklahoma, Virginia, and Wisconsin. New Hampshire doesn't have a learner's permit, but at 15½ one may drive with parental supervision in NH.

15¾

Maryland

16 years

Connecticut, New York, Delaware, District of Columbia, Kentucky, Massachusetts, New Jersey, Pennsylvania, and Rhode Island