There surely are balances that need to be struck, and sometimes it can be quite difficult to even invest more than 10% of your income, so each of us has to figure out how much we are able to do, that might also involve tradeoffs that we make in terms of gaining job skills and/or experiences that might contribute to our abilities to earn more later down the road...so yeah, it seems that you overall understood these comparative matters, even though you seemed to be fighting with the hypothetical in several areas, too.
You know no-one can be as good as you in cooking up this hypothetical but we do our best to understand you and it sure passes a lot of message, after reading through all your quote I started seeing what you were trying to explain and I noticed that you tried to keep the senerio equal for each of them, I maybe got a little confused or maybe trying to suggest something outside the context, but anyway I'm good now, I've understood you quite well.
Your very right, not everyone would be able to invest up to 10% of his income into bitcoin for different reasons and some cam be because they feel they need all their income for various other things, so yeah the guys in the hypothetical are already very unique for been able to invest up to that % of their income into any asset at all. IMO I think for anyone to be able to invest in bitcoin is not really a rocket science, everyone just needs to figure out what they can be able to invest into bitcoin and DCA makes it better you can invest at intervals that suite your income, not everyone must go up to 10% weekly and just like guy 1 although he wasn't too aggressive like other guys in the hypothetical he was able to still have a hood value in bitcoin over the years, so if anyone wants to invest we should try not to be too competitive with ourselves because in some way many of us here might have disclosed how much we have or are Currently allocating to bitcoin and end up wearing themselves trying to meet up, so in conclusion your hypothetical passes a lot of message on how we can stay in our own lane and do what we can.