Any investment is freedom, but you shouldn’t forget that (what kind of freedom?) if for this you have to work for decades and buy Bitcoin, then I don’t think that this is the right decision, I think that if you have little money, then you only need to invest in your training and not in Bitcoin, investing in Bitcoin is better left to people who are already firmly on their own two feet.
Anyone can invest in Bitcoin if they have the capital to do so, if they want to learn and try investing with capital from bounties and airdrops, that is also a good step. and freedom also does not mean for those who can stand strong on their own, but those who want to be better for their economy can also invest here
There is no discrimination in being able to invest in Bitcoin. Anyone who has more funds can do that if they are interested, so there are no restrictions for certain people.
I agree that if you really want to learn how to make initial investments, it can be from capital obtained from airdrops or bounties, so that there is no fear of losing, because the capital comes from prize money.
Indeed, it would be better if you invest using funds that are not connected to your daily needs, aka extra funds, not precisely the funds needed for your needs. It will be detrimental if you make a mistake in your analysis.