Hearing testimonies from different sources, I can only conclude that "You don’t need to be rich to invest, but you need to invest to be rich." Riches aside, investment can increase your financial freedom, but the problem with most people is procrastination, they want this BIG capital to invest, but it is not like that.
From real estate, stocks to crypto, we have seen people buying their assets that were deem worthless, but suddenly became their source of wealth. I remember someone who couldn't afford a land at the city center but wanted to invest. He bought it at a rural area where he could buy over 1 acre. Not long after, the government decided to build a Federal university in that locality. Right now, a plot of land there can buy a plot of land in the city center that he couldn't afford, that is the power of investing.
It mustn't be convenient, it mustn't be in thousands of dollars, a little that is being consistent about and carefully thought through could make that wealth. Start investing today.
Having knowledge, patience and a plan is key to investing. Just throwing money into random things because you heard other people doing it is most likely going to end up in disaster. Unless you have a full grip and belief in what you're doing, it's possible for you to buy in at the wrong time or cash out in the middle of a crash when it could recover. You also need to be prepared for that crash scenario and have spare "emergency" cash available so you so not need to touch your investment during the worst time. There are also kinda of caveats like this which can burn your money if you don't understand and have full faith in - many people claim to be strong enough but panic during a crisis.