A lot of people trade based on technical indicators and there's plenty of simple strategies based around moving averages that aren't complex.
In my hometown of Chicago, a lot of people used to be employed in the pits at the CBO market making. (Basically being around to take the opposite end of a trade and making small profits by selling/buying at better prices.) But those jobs were eliminated by HFTs. HFTs absolutely sucked up a ton of profits. All the traders I spoke to who had traded in the 80's, 90's and 00's said that trading got much much harder from the years 2005-2010.
Retail traders still have the ability to take speculative risk and buy/hold. It just takes a lot of time.
In my hometown of Chicago, a lot of people used to be employed in the pits at the CBO market making. (Basically being around to take the opposite end of a trade and making small profits by selling/buying at better prices.) But those jobs were eliminated by HFTs. HFTs absolutely sucked up a ton of profits. All the traders I spoke to who had traded in the 80's, 90's and 00's said that trading got much much harder from the years 2005-2010.
Retail traders still have the ability to take speculative risk and buy/hold. It just takes a lot of time.