Everyone is free to believe as they like,granted,but I go by science and medical professionals that have more experience in dealing with PED's.
As for all Olympic athletes use PED's, is just not accurate and pro athletes either. Sure some do,but not all of them.
Medical professionals use PEDs (steroids) on a daily for patients to help them recover quicker.
You have a rash? Steroid cream. Bad car crash? Steroid. Cancer? Steroid. No more or low testosterone? Steroid.
It is the closest things to a superhuman drug. It truly is magical.
The downside is it comes with side effects so you need to be smart about how and what to use.
The ex-head of WADA claimed 99% of Olympians were likely on some PEDs, and it makes perfect sense. You're talking about athletes where a fraction of a fraction of a second can make the difference between front of the wheaties box or relatively unknown.
I bet you can tell me who's the fastest sprinter in the world, nobody knows who the hell is 2nd fastest though, and the difference is only 0.11 seconds. So ya, PED use is very common and as Icarus showed, some countries like Russia flat out had doping programs for their national teams. I'm sure other countries do. I also know Ukraine weightlifters are encouraged to get on PEDs from their teenage years.
Every day folks just aren't that involved in sports so they don't care and just assume most are clean, but that's likely to be very far from reality.
And yes, I do support their usage. PEDs have been demonized in the press. They're not bad, they're extremely good. You just shouldn't abuse them but the same is true of any drugs.