Why this kind of equipment is not mandatory!

I bought 4 programmers to equip my apartment.
With little knowledge of electricity, I set up and programmed without programmers big problem in my picture.
Just with a good clip to catch the son and a little patience. It just goes with son 2.5mm 2 per terminal to plug 2 radiators timer.

So I have all my zoned heated apartment only to the required hours.
Considering the price that it costs, I do not understand that this type of equipment is not mandatory for houses equipped with electric heating! We soule us with ecology with bulbs, vigils devices 2watts to win, while there are clearly several kwatts saves without any effort!

In short, in conclusion, I recommend very much this type of equipment, especially this one that perfectly meets my needs programming and seems good with CE