For most it is. People can be very naïve about what it takes to become a consistently profitable trader.
Noobs like to hope, "easy to jump into trading and make big $$$... no big deal". Yeah, easy to "jump into"... not so easy to prevail.
Wrong. When you're a trader, you're trying to take $$ away from others who are also trying to take $$ away from you. Those who are smartest, most disciplined, and best capitalized will almost always prevail.
Not saying "it's impossible", because it IS... but not as easy as noobs might hope.