Of course, as you have said, even traders who already have a lot of experience will never escape losses, or in that sense whoever you are, beginner or experienced, of course you will still experience losses, and it is also a fact that in Any activity that has the potential to be profitable will always have a negative side, such as the risk of loss. But perhaps the difference between beginners and professionals is in terms of losses, in the sense that beginners definitely experience more sessions that make them lose due to their knowledge being still very basic.
This means that skill and knowledge do not mean that they will always guarantee profits but are useful for increasing the opportunity for profit and minimizing the risk of loss, and if indeed skill or a lot of knowledge is a guarantee of always being able to make a profit and completely avoiding losses then surely the richest person in the world today is they are traders. Basically, the market will continue to run and create different prices. Simply put, as long as the market is running, of course the risk of loss will always be there.
I believe that even veterans may make some mistakes, but veterans do end up being a lot better most of the time as well, they do not end up with a loss, it should be pointed out that we are talking about something that takes some time, so it shouldn't really be a problem.
A veteran would rarely lose money, because they are a veteran or at least they should, because if they spent so much time learning and trading and still making a loss then there is something wrong with them. Majority of the veterans lose money very rarely, and while they do, newbies keep on losing money like crazy and that is something that we have to realize as a difference.
Yes and indeed that is a fact, in the sense that even professionals or those who are experienced still experience losses in their trading activities and it is a normal thing to happen in an activity that cannot be predicted 100% accurately. This means that having more experience or flying hours does not mean that it will guarantee you to always make a profit in every trading session, but rather that it will make your trading skills much better in the sense that you will be able to avoid the possibility of too significant losses.
This doesn't mean "not at all" but rather "rarely experience losses", but on the other hand there are also some professionals who experience losses that exceed their profits, in terms of time yes they have more flying hours than beginners but the results are not much different. with beginners, that means, as you said, there is most likely something wrong here, in the sense that it is very likely that while they are going through the process they do not learn various things about the world of trading well so that the results are monotonous or there is no progress, and if we talk about the beginners, yes, I think experiencing losses more often than profits is normal, but over time they should get better.