As a 'Millennial', there's a very good possibility that BTC will be the currency that you'll be using in the future, if not some derivative form of BTC, so it could be in your best interest to learn what BTC is, how it works, and how to be as certain as you can be, that any BTC under your control, say under your control. If you don't know how computer networks operate, then learn, because BTC is computer network dependent. If you want to learn how to trade with BTC, then that's an entirely different (although not unrelated) skill set.