The circulating supply of a cryptocurrency is just one factor to consider when evaluating a project. While a low circulating supply may create scarcity and potentially impact the price dynamics, it should not be the sole determining factor in your investment decision.
Exactly. I've seen coins with an extremely-limited supply becoming a failure due to low interest/demand from investors. They're virtually out of the radar, due to poor marketing/promotion efforts from the developer team. A good example of this is 42 Coin (42). Garlicoin is in the same path as the aforementioned cryptocurrency. A pity because these coins would've been a great alternative to Bitcoin and Litecoin. At least, in terms of using it as a store of value.
Remember, "not all that glitters is Gold". You'd need to do your own research to help determine which coins are worth it and which ones are not. As long as you don't go crazy putting all of your life savings into crypto, nothing should stop you from becoming financially-independent in the future. Act responsibly and avoid the hype just to be safe. Just my two sats
