If as an adult you've ever wondered why you were taught some things in high school that ended up being only tangentially related to real life at best — sine/cosine and y = mx + b, anyone? — when you really could have used some schooling on basic skills like personal finance, you're not alone.

Thankfully, one Canadian university is offering the chance to learn a few of the real-world competencies many of us never did, like personal banking, investing and budgeting, as well as the ins and outs of things like real estate, debt and borrowing (so you won't have to turn to that popular subreddit for help anymore.)

And the best part is that it's completely free, completely online and available to everyone in both English and French.

As a future educator and current student/semi adult I still do not understand why students are not taught about basic financing and banking in high school. It is by far one of the most useful skills we use in today’s world but yet we are thrown into life ignorant about it.

— steven t. mattox (@bigtman72) October 4, 2019

McGill University's Personal Finance Essentials course kicked off in November, and has seen more than 20,000 students so far.

It's not a full-credit university course, but does consist of a few hours of content with tests following each section, and is administered by real professors from the Montreal university's Desautels Faculty of Management.

If improving your personal finances is one of your priorities on your New Year's resolution list, McGill University's is offering a free online finance course called UNIVERSITY OF McGILL PERSONAL FINANCE ESSENTIALS.

You will learn... https://t.co/EmsW39UVOM

— Michael Arthur (@miketheagent613) January 2, 2020

The course was created with the understanding that financial literacy is "key to achieving important life goals" for anyone. Students receive an attestation of completion upon finishing it.

Though the first session of the class is underway, registration for the second session opens on January 20. Two additional sessions are scheduled to start in May and August, respectively.

How come we aren't taught the basics of banking in high school ? how to fill a deposit slip, how to write a cheque etc

— Übermensch (@Trackmann) April 28, 2017

If, like many, banking and finance is one part of adulting that you haven't quite confidently mastered yet (do the banks really want us mastering it, though?), the class seems like a great and very realistically doable way to learn a thing or two, even if as a millennial you'll never be able to afford a house or invest in anything anyway.