Yes, they do. This isn't like any other riding experience you've ever had. It's faster, more risk, but more fun than you can imagine. You're almost completely free of any constraints or rules.
I offer my own experience at RA a couple years ago as an example:
I walked away with a concussion, a sore shoulder, and a small/hairline fracture in my hand. I had a little scab on my shoulder from my suit rubbing my skin as I slid/tumbled..but that was the only abrasion.
It does cost a few bucks to get geared up, but hopefully this is one of the things you learn by coming to the track. Gear is important. Gear can save your life no matter where you ride. After 18 years of being on the track, I won't hardly ride unless I'm in full gear. It's too frightening.
So think of this as taking the opportunity to catch up where you REALLY should be with regards to safety equipment to protect your body. You can buy a new bike, you cannot buy a new you.
Holly f**k dude! I didn't realize that your crash was there? That's what happens when I go away for a while I guess.
Back on topic. There is a base amount of gear you need to start. There is no way around it. Leathers, helmet, boots and cloves. I have learned a few things over the years and I will share.
Leathers: Depending on your body type, this can be easy to find or hard. You can spend from $500 to $3000+. There are used leathers, which are very good as long as you check them out for damage and proper repairs. There are many places to get repairs and adjustments, so if a used set is close to fitting, then you can have it adjusted to fit. Be mindful that the adjustments can only do so much. I had a set of Teknics for years that I got from a local shop on a deep discount. I recently went with a set of Syed leathers for around $1100. These are full custom leathers. They are heavier than the more expensive custom suits, but I will deal with the extra weight to save a ton of money. There are many options out there and I suggest you look at and ask questions about people leathers at the track. Everyone will be happy to show you and talk about their leathers.
Helmet: Lots of opinions about this, so here is mine. I used Shoei for the first 7-8 years of my riding career. I switched to Arai for about 11 years. Now I run a Bell. I run a Bell because the helmet has the same safety rating as $500+ Shoei and Arai helmets, but only costs $200. It is a bit heavier than my preferred Arai, but when you need to replace a helmet every 5 years (maximum) or if you fall off, which happens occasionally, it gets expensive. I do not buy the argument that a more expensive helmet is "better". If the safety ratings are the same, then the helmet is going to perform very similar in similar situations. It's far more important to use a helmet THAT FITS PROPERLY.
Gloves: Get gauntlet gloves. Spend between $100 and $200. Proper fit is the most important thing.
Boots: I have used Sidi boots for years. Spent about $250 on a set that fit and have performed in the best and worst scenarios. Get a set that you can walk around in or make sure you take them off after each session. You do not need to go out and by $1000 boots. Something similar to Sidi Fusion or Cobra boots is more than enough. Good fit, ventilation and ankle protection.
I would expect a person to spend between $1300 to $1800 on a good setup for track riding. $2000 max for a really good setup which would also include a back protector. Example setup
Sidi Cobar Air boots - $260
Syed ready-made suit - $875
Bell Vortex helmet - $190
Alpine* SP-1 gloves - $150
Alpine* Bionic back protector - $150
Really nice gear. Should protect you in any realistic situation. $1625
One more thing to think about when you look at the cost of gear. You are spending, on average, $300 to $400 a day to ride at the track. This would include tires, fuel (on track and to/from the track), food, the track fee, membership fee and lodging costs.