The summertime job has historically been a teenage right-of-passage, but times are changing.

In the late 1970s, nearly 60% of teenagers between the ages of 16 and 19 had a summer job. Now, that number is just over half of that at 34%.

While some may blame the laziness of today’s teenagers, that’s simply not the case.

“I’m away from the whole month of July, and I’m also volunteering at the hospital in June, so between my vacation and that I don’t really have time to have a job,” one teenager told NBC News.

Volunteering is a key metric on many college applications today. When you add summer studies and extracurricular activities on top of that, today’s teens say they just don’t have the time or flexibility to have a part time job.

Some of the already over-scheduled teens do say they see summer as an opportunity to take a break from their already hectic life, and some of them are even finding flexible jobs like tutoring that can fit their hours.

Employers are certainly feeling the pinch as they gear up for the summer season. Once bombarded by teens looking for part-time summer gigs, they’re now hiring college students — many of whom are from Europe and in the U.S. on temporary visas.

“It’s just a shifting demographic of the workforce,” said a manager at famed lobster joint Barnacle Billy’s.