The idea of getting started does not necessarily mean that anyone needs to start by investing a lot, and the getting started causes them to have to learn more about how bitcoin works and where to get price exposure.
Most people should have some general idea about how much discretionary income that they have, so even a person who knows that they have $100 per week that they could invest into bitcoin, might decide to start with $20-$30 per week while they are investigating further into bitcoin, and maybe it takes them several weeks or even several months to get more comfortable that they feel more comfortable to increase their DCA amount to perhaps $50 per week, and after some time they might be able to figure out how to increase their income and/or to decrease their expenses, so that they have $150 or $200 per week that they could invest into bitcoin, but they might decide to increase their investment to $80 or $100 per week at some point later down the road.
This is like learning on the job which is one of the most effective ways of learning. Someone who start his Bitcoin investing by putting in small money while continuing to better his understanding of how Bitcoin works and how to make the most of the opportunities therein will most likely do better than someone who want to know everything about Bitcoin before getting started. From experience, those who want to know too much before getting started tend to procrastinate or get discouraged along the line because of no financial commitment from the onset. For the example you gave, it might just be that they want to be sure that their money is invested into something that they can trust so they will be able to take ownership and responsibility of the investment. This is not a bad thing for me because "no one test the depth of a river with both legs".
I believe in the principle that says where there is financial commitment, people will become serious about it. This is true for Bitcoin as I have seen many people who never got started because they could not understand the idea of seeing their money in a new concept that is different from their traditional understanding of money.