Mate, Bitcoin is for everyone including the wealthy and low income earners, every investor can't not be on the same page financially but the DCA has made it possible for every class to the able to own a share of bitcoin and reserve for the future, the only difference is that the rich can do the lump-sum however the low income earners have to buy in bits and periodically then be patient and allow it grow into something that would put them in a better position financially in the future. So if you know any low income salary earners that's interested in bitcoin but think they can't afford it you should encourage them a help them to understand they can still do the DCA and build a very good portfolio in the future.