I dont think that Bitcoin is instant way to get rich, it is just like the other currencies, need hard work to earn it and not so easy. You can get rich if you hold good amount for some years and if the price rise highly in this period
We need hard work to earn Bitcoin, the price that keep increasing everyday will make us feel that we are become rich instanly. The price of Bitcoin that always go up is such as passive income for us. Because our money grow even we aren't doing anything.