Certainly trading can never be a lifetime job, we cannot earn money from trading all time. We must have losses at some point. If we don't have a permanent good job system, then we will not be able to cover these losses in trading, so it will have a lot of impact on our daily life. So we must have a good job system (From which we will get a good salary), So that if we have a loss from trading then we can cover that loss and continue trading again.
Basically, whether trading will be a lifelong job or not, in my opinion, depends on the trader. I can't say that trading is not a lifelong job, but perhaps more accurately I agree to say that trading is not the main job, or what I mean by trading is not can be used as the main job in life, one of the reasons is because yes you have also said above that this idea is not good because trading is a risky activity and the risks can never be completely avoided.
There is the possibility of risk causing a trader to experience unexpected losses, but when we have good planning, management, control and risk management then it is clear that we will be able to slightly minimize the possibility of significant risks occurring, or that means we can avoid excessive losses. great because it has good risk management, but overall there is absolutely no compulsion for anyone to get involved in the world of trading in the long term, simply put, if for example you are still able then do it.