“They think it sounds better. And… I get it. The line between summer job and internship is sort of fuzzy in college (LOTS of what are called internships are really summer jobs for bigger companies).”
But we are talking about high school students. I know they think it sounds better but it’s ridiculous and doesn’t help more then listing it as a job. I think colleges see a kid who works at any job to be a plus - even if it’s scooping ice cream at the local DQ. Future employers do too.