WHY PEOPLE CHANGE THEIR METHODS?

I see that there are a lot of people who have been in the market for many years, who have very good and very wide knowledge, they know many trading methods and many of them are really good.
But it's strange that they still keep changing the method they're using, it's obsolete, no, it's because they don't persist in pursuing any method to the end, they just want to experiment and find more because they always doubt their own current method.
And I believe they will stay like that forever and can't be stopped for a lifetime.

If a method is working then I don't understand the need to change. I like my trading to be boring. I guess some like more risk than that.

Not all methods will work forever. Some work better in trending markets and others in range bound so it is important to change method when conditions change

Changing methods in trading activity is just an ordinary thing, because market is very unstable thing. I believe that if professionals would never change their methods, market would push them out right away, shortly after it changes its direction. It's almost impossible to trade with one strategy during long periods, for example years. Market is very unstable and very volatile. I think that we should always comply with market changes in order to stay on this market, in other cases we will face liquidation of our accounts at all.

The Forex market is always changing. Your method should work as long as you continue to refine your method and make adjustments.