therefore use free money to invest, so we can immediately decide.
It is impossible to invest if you don't have money.
Remember that because most of the investors invested their hard earned money and if you are going to use 'free' money to invest, I don't think that you will strive to grow that money.
I think the word "hard earned" kinda sounds like that investors worked hard in their full-time jobs just to invest some of it in crypto. If I was a newbie in crypto I would not invest any single cent when I know I ain't stable yet in my financial status. Crypto trading, as I see it, seems like a part-time job for me not in the way that I would work on it for another 8 hours after my full-time job.
Faucets kinda works for starters in trading if they're still in the line of learning the ropes of it, after that they'll ditch the faucets and start building their capital by their own planned savings.