If bitcoin truly solved the issue of trust there would be no need for all of the various intermediaries who have popped up to insert themselves into the transactions. Also, there wouldn’t be nearly as many scams.
In reality though, those intermediaries make use of Bitcoin easier. They are not a requirement. I can buy Bitcoin from individuals directly providing I can find one who wants something to trade for it and I have a way of delivering the goods. I can also send my Bitcoins to individuals without any intermediary. All I need is the official Bitcoin application on my computer. No need for any intermediaries.