Quitting isn't a solution but rather an excuse for someone to take because they are afraid on facing up risks.
It's okay to quit and if it can be a solution. Trading doesn't suit everybody but only a few that wants to take risk and can bear it.
What you've said can be a personal motivation to those aspiring traders and if they find to give up but still sees themselves to be a trader, they just need to be lifted up and reminded a bit of what their goals are.