I don’t see a problem with this because this only happens in individual projects. Who cares if some teenager wants to control her reading lamp with a RPi instea

I don’t see a problem with this because this only happens in individual projects. Who cares if some teenager wants to control her reading lamp with a RPi instead of an ESP8266? Or if some dad wants to make a noise detection circuit for his nursery using an old laptop instead of an Arduino? What’s likely to happen is that they will both learn a lot of new things, including about the inefficiency of this. Just because you know better doesn’t mean it is bad that they did this. Besides, when you go for controlling your lamp with an ESP32, someone can always point to a simpler and cheaper processor to use instead. Then we can run into circuits designed without any software at all. Eventually you’ll be left with a MOSFET and a proximity sensor and your inner purist will be happy. I say the point is that you should try to do trivial things with complex control systems and vice versa. You’ll do it better and more efficiently the second time. And the third. And if you decide to scale it, you will quickly learn the cheapest way to blink 10,000 LEDs.