Balog, welcome to the world of 2 wheels. Don't know what it is about firearms and motorbikes... could it be the combustion / ignition thing going on?
Anyway... so you got a lid. Good for you. Don't leave home (on the bike) without it.
After riding for 35 years, I decided to become a MSF RiderCoach. You should have fun in class, unless your coaches are still locked in the old school ways. MSF has completely revamped the curriculum, for the betterment of the students. But I digress...
You'll cover all the info about what gear is best, what to look for, watch out for, etc. in clothing. Lotsa choices these days, as you've seen. Buy the gear; don't scrimp. It doesn't have to be your fault, but when you (OK, IF you) hit the pavement, the results are the same. Jeans may seem comfy but don't hold up in a slide. Well, they do, but for only about 3 seconds.
I ride everywhere, all the time. And I always wear the gear. We call it ATGATT - All The Gear All The Time. You don't always get to choose when you crash. Dress for it. Yeah it's hot in the summer, you can get mesh jackets with pads, but it typically has not proven to hold up when you need it, as well as solid materials. I live in AL, and the summers bring out the best of the humidity (but it's a soaking heat!) Folks always ask me, "Aren't you hot in all that gear?" My answer: "Yeah. What's your point?" I'd rather sweat than bleed. Just show me the sink, when I get where I'm going, OK? You don't have to be that hard core; many of my riding buddies aren't.
Everyone will have opinions, and most are eager to share them with you. Congratulations on getting the education FIRST! You'll start your riding with a great big bag filled with luck, and another big bag, with just a little teensy bit of experience in it. The goal is to fill up the bag of experience before you empty your bag of luck.