In my opinion, starting a business without capital is not impossible in the current era. The stigma of starting a business with large capital is that people whose average expectations are very high end up feeling afraid or embarrassed to start it.
In fact, every time we start a business, we only need to understand three steps, first understand the knowledge, second be confident in the business we are running, and third run it with full confidence. Especially in the current digital era, many businesses do not require a lot of capital or even no capital at all. One of them is like the example you gave, now even with a smartphone you can make money like being a content creator on social media, of course the key is to only have one desire and don't give up easily.
Becoming a content creator is not easy, of course there will be its own obstacles and I think this does require capital, even if it is calculated as small as with an internet connection, in my opinion that is already included in the capital. there is no way we can do it without an internet connection. It is true that in this era, technological developments make everything easier, but of course, even though everyone can become a content creator, not everyone can be consistent in doing it because some people may fail to do it because they are not able to cope with the obstacles they have to face.
Many streamers currently play games live and earn money from it, but I don't think it's easy. because as far as I know there are some things that are quite difficult to do, but I agree with what you said regarding the three things you mentioned. However, with the second and third, I think you are conveying essentially the same advice, namely "sure", only the sentence is reversed.