Oh yes, that's a very good point. It sort of slipped my mind because this was already happening with Mini-B (from 2000!) before the switch to Micro-B (from 2007), which is something that annoyed me slightly due to different connectors. It was understandable on account of the smaller size.
There's this on one hand

and this on the other

Clearly different things marked with the same symbol. The latter is the kind of cable that rules on mobile phones and tablets. However, there are small exceptions. For example Prestigio devices seem to come with something very very similar, but they are really different (from both) and connecting them to non-Prestigio chargers will quickly ruin the connection and the device cannot be charged anymore.
I have noticed people express their annoyance at that the cable can be connected just one way while at different devices the holes are in different ways. That's a legitimate annoyance. I personally wish for a more solid connection too, so that it's easily felt that it's connected and then it stays there. It should not require any trial and error to see if it's really charging. Right now charger connections seem to have been purposely done to cause wear and tear. Everybody around me keeps borrowing chargers, but I never ask one from anyone - because who knows where it's been. Rather, I keep multiple chargers with me for my devices, plus one extra charger to give out when asked.
And I note that laptops still, in 2017, practically each have their own different charger per model for no purpose whatsoever other than let manufacturers earn a bit more by selling chargers.
Now for a something completely different: which is the best Android launcher? (i.e. skin/home screen)
There are a handful of manufacturers that have committed to an essentially stock build of Android - think Nokia and OnePlus. Others, like Motorola, stick close to that (with some Enhancements) and recently parent company Lenovo announced it will be switching to stock as well.
I'd say it's best to have a choice. In my old LG Optimus One P500 I soon switched to ADW Launcher available from the app store. It fit perfectly for my needs and I kept it as long as the phone lasted.
In Xperia M5 that I had for a brief while, I opted for the "simple" view of the home screen. For some weird reason this "simple" view provided quick access to everything relevant and nothing was left missing.
Whereas in Samsung Galaxy Note 4 I keep leafing through three screens with many widgets (time, weather, system stats and calendar), tons of foldered icons and I have not figured out how to rationalise this better. Young people I have seen, they do it even worse - they let messenger chatheads pop up on the screen in addition to everything else. I turn all such notifications off. I treat chat like snail mail: I will certainly at some point get to a point when I can and will reply, it might take a day, but I will surely get there - not before I get to that point though.
There are some niceties in Galaxy Note 4 that I have not noticed elsewhere. For example you can uninstall apps in the apptray (the view that displays all the icons, where you usually open them, if they are not on the home screen). Most importantly, there is some sort of window-like multitasking: you can have two apps side by side and you can have any number of apps as floating windows which you can minimise to "appheads" (appheads is a term Apple has apparently stolen; here it suffices to say that Samsung Galaxy does the same thing).


Some of this functionality can be enabled on any Android with some apps (look for "multi window", "floating apps" and such), but in Samsung Galaxy (probably just the big ones, like the S line and Notes) it's available out of the box and works quite smoothly.