You're right about the kernel. Somebody else told me that awhile back. Why is that if it isn't some kind of conspiracy?
Yeah, ok. Let me toss out something, see what you think.
Out here in the Southwest USA, we got us some ranches and we have a thing called Occam's Razor.
Occam's Razor is good at slicing up questions under the idea that the simplest answer is usually the right one.
If I were to blindfold you and drive you out a ways onto the range, eventually we'd hit a spot where I could turn off the motor and you could hear some galloping and what might sound a little bit like a miniature stampede.
You would be right if you said, in theory, that noise could be a bunch of zebras and a heap of yaks.
But the simplest idea would likely be the correct one - that would be the sound of horses and cattle. (We actually have zebras and yaks in the Great Southwest but your chances of hearing them are really slim.)
I've been reading from various devs for three years why you can't do call recording on my phones blaming the processor, kernel, or both.
Now if I look at that app, read about what he had to go through just on my phone model, and a bunch of combinations to try just to get my version of my phone to work, then it's pretty easy to conclude that supporting this just for one model isn't a walk in the park.
Now, suppose my phone maker decided to offer this?
In addition to my model, they make a lot of others. Now we're talking about real engineering, testing and support time.
Plus, what do they do if it breaks some other feature?
After all, it's not like it's just magically included in their kernel and then they threw the off switch.
Plus - their international corporate legal staff would get to charge extra because call recording is restricted in a lot of jurisdictions.
Where I am, I have to ask for permission first, then turn it on, then verify that I have permission to record the call. (So, no to the OP, just being on automatically all of the time isn't obvious to me being something that we all want ok.)
Now - add up all of those costs and take your best guess at how many people would care about this feature for the expense and then after involving marketing after all of the above and before you're ready to sell it, how much have you driven up costs and cut in to profits?
And how much extra would people be willing to pay?
I got a market sample of one that really wants it but says $10 is too much.
Plus what do you say when your competition's marketing department accuses you of putting out a sneaky spy phone that doesn't respect anyone's privacy? Whose side do you think the press will take with juicy click bait like that?
This could all be a conspiracy. I can't prove or promise it's not.
But I think that the conspiracy sounds like zebras and old fashioned cost and profit control sounds like horses.