Actually in reality most of people who fear to lose will not learn because they're scared to take a risk.
It's even fair when someone is scared of venturing into something new that they aren't used to and keeping quiet to observe it than spreading FUD about what they know next to nothing about.
Sometimes fear of to lose is the best way to go about something, let's use memecoin for example. If a new project enters the market some people starts investing in it without knowing about it if it is good for investing. Fear of losing does not mean that one is skeptical of going into something but it really means observation to really know about some thing. Their is nothing bad to observe if something is worth investing in. Many have lose so much money because they failed to observe, through making research how true and reliable the project is.
Fear is always their when one have no idea about something and this is a normally feeling humans exhibit, because when going into something things that comes into the mind is what if this thing does not work . The fear of losing prepares one to know more about something to reduce the risk to lose.
When fear of lose becomes bad is when their is no observation about something or no research, but just be skeptical then it is bad and having an attitude like this can make one of missing much opportunities.