The phrase "decision years" refers to a period when people, especially young adults, have to make important choices or decisions that can greatly impact their future. Full definition
I have to admit it was one of my best decisions this year. (c-date.com)
On its Web site it boasts that it influences more than 13 billion credit decisions each year and has sold more than 10 billion FICO scores since 1985. (www1.cbn.com)
This is just one example of how school leaders are forced into tough decisions every year about how, and what, subjects will be made available in each school. (educationbusinessuk.net)