I've been tossing around the idea of starting a group of people who are committed to buying Bitcoin every month. Can be a small portion, like 5$, or however much people can afford (I suppose it would make sense to use higher amounts for fee reasons, though). I myself have set up a monthly wire transfer from my bank account to Coinbase and a recurring purchase of Bitcoin every 1st day of the month. This is really simple, and you keep investing and $-cost-averaging your BTC purchases. Who's in?
I am suggesting that you start implementing this idea with your close friends, family, relative and even neighbors where there is a higher degree of trust all because you all know each other. Getting other people somewhere half-way around the world may not be that viable and feasible. At least, for me. However, i love the idea you are presenting here and anybody can actually do the same without being a part of the group. This is akin to regularly putting up a certain amount of money to your bank's saving account but this time with cryptocurrency. I think there is actually a company offering this same service while just using their app conveniently. A good idea like this if implemented by many people can make cryptocurrency more popular and easier to reach and accumulate.