Age can only be a threat to those Investors that can't make direct purchase, I noticed that some people are not familiar with online purchase. Instead they prefer making thier purchase through bitcoin ATM, and there is a certain stage were they won't have the strength to be going to the bitcoin ATM as they used to when they have not come to aged. And this can probably  slow the accumulation journey, but those who are familiar with the online purchase will not be affected. However I think is to start bitcoin accumulation on time so that before we would get to the stage where we will be facing any of this challenges  then we must have reach our investment goal or the stage of overaccumulation.