When 15,000 canadians were asked whether they were trying to take on too many tasks at once, responses indicated highest stress levels among?

The answer is youngest adults.
This happens because In general, youngest adults tend to still haven't figure out what we're our true purpose in life.
So, because of the fear of missing out, we tend to take too many things at once, (such as various courses, classes, social activities, etc).

Vanessa had a dream to be a ballerina. with her father's she had that opportunity.