Experience always starts at losing that's why it's better for me to see newbies having a tough run while they progress.
I agree with your points of view. Mistakes improve a man's knowledge and experience. It is important to learn from your mistake and if you make the same mistake simultaneously then you are not concentrating. Every time a trader makes a mistake a short note about it should be taken so that he can improve his strategy by finding out the reason behind that bad trade.
Mistakes are very essential in learning, this is the only to get understanding of things very fast. But in trading I don't think it is proper for beginners to learn everything they needs to know through Mistakes. Beginners needs to put effort in learning to minimize mistakes they will come across in trading. Too much mistakes causes lose of money in trading, if their are much learning habits it will reduce the rate at which beginners lose in trading.
In trading no doubt we need experience to make things easy as we proceed in trading but we should not have a mindset that every understanding must come as a result of mistake.
Mistake is a prove that one is learning and there is no way we can prevent that especially as a trader. Beginner traders would always make mistake for a better understanding about the market. Many pro traders we see now with accurate results never started trading as a genius, they like the process and because of consistency, they were able to persevere and undergo the proper training that brought them to the level they are today. If we out all our efforts on something and we are ready to learn such thing with all curiosity, we are going to get to such level if there is no external force acting on the person as a resistance.
Mistakes are learning but on the sense that you are already that making too much mistake then this is something that wont really be that wise anymore. You should really mindful whether you should really be lessening up the risk on acquiring more mistakes because even though it would really called as a learning but still wont really be that wise on tolerating it or making yourself that stagnant on not to make any actions and keeps on repeating on the same mistake all over again and again on which it isnt really that wise anymore on something like this. Mistakes are indeed that inevitable even on how professional you are or how veteral or old you are into such industry but there's no way that you could really be able to avoid it. The important thing on here is that you do know on what you should gonna do on the time that you would really be able to experience it out and do have those back up plans that had already been set.
Just go with the flow and act accordingly and make out adjustments on which are really that supposed to be done on whatever things you would really be needing to deal with.
Adjustments and really that having that good reactions and versatility would really be able to help you out.