It's okay if someone does some trading test as long as he'll do everything to get back the sold Bitcoins.
you are going to mislead newbies who are just getting started with bitcoin investment with this your statement above, because I don't see any reason why you will be saying that it's okay for someone to test trading if he/ she will do everything to get back the sold bitcoin, it is a very wrong advice and a misleading advice that you are giving to newbies who are just getting started with bitcoin investment, what you should be advising them is to stick to accumulating bitcoin to enable them accumulate a good portion of bitcoin to hold for long term
54 to 10
years or more and not advising them to test trading, because I don't know what they are testing trading for, unless you want them to get distracted with their bitcoin accusations journey.