Just my 2 cents worth:
All knowledge is worth something somwhere down the line. I started learning about computers and programming more than 30 years ago (because I was genuinely curious). But I started out my career as a sheetmetal worker. Little did I know that later on in my career that seemingly useless knowledge would help me get promoted from the blue collar field to the white collar field (while working for the government), and that all of that accumulated computer knowledge that I learned on my own would play a huge part in my career.
All of this is to say don't pass up free knowledge, because you'll wish that you had not in the later years of your working career.