Apparently, and I had no idea solely due to assuming that Canon’s eternal rivalry with Nikon led to their cameras sharing most of the basic features, but I guess not.
So Nikon’s full frame bodies support crop sensor lenses with smaller glass elements by using an equivalent portion of the whole sensor that the crop lens will cover – crop mode. Though you lose more than 1.5x the megapixels, you can still enjoy the old lenses; especially if you’ve invested into pro-level, f/2.8 ones. Since Nikon offers pro-level crop bodies, it surely does lenses and they cost about as much as their full frame counterparts. In short, no Nikon lens ever becomes useless even as you climb up the body ladder.
Seems that on the contrary, Canon made a straight and simple split between two sensor formats AND with them all of their lenses. So if you’ve saved up for that sweet pro-grade 2.8 crop lens before you scraped the money to move to a glorious full frame body, you’d have to save ALL over again for a different lens to do the same exact thing in a larger format.
So never mind Canon cutting off their vintage selection of glass from all their modern bodies, that’s honestly not what enough of the population is even interested in, but essentially splitting up their current selection in half forcing you to re-acquire everything per jump into full frame is simply retarded.
So my Canon folks, why do you even bother with the company?