My first job out of university, I was promoted to manager in my mid 20s. One of the senior engineers reporting to me had kids older than me. Now, they were PA

My first job out of university, I was promoted to manager in my mid 20s. One of the senior engineers reporting to me had kids older than me. Now, they were PAID a lot more than me ... The first thing they taught me was that it wasn't my job to do the work, because it didn't matter how smart I was, I didn't have almost 30 years experience.