Why isn't SMART supported in "system information" on Mac OS?

Question

macOS

On a MacBook Pro Retina 13 2015 (MF840), the System Report says:
SMART Status: Not Supported
Is this normal? If not, how to fix?

Answer 1

Because SSD?
On my native HDD (Mac Mini) it shows:

Answer 2

Looks like you don't have an HDD, but an SSD. And he has slightly different self-test algorithms that do not always transmit SMART data to the computer in the form that the HDD did.

Answer 3

In short, for all versions like "so this is an SSD":
(See below where SMART status is). True, I have this drive connected via Thunderbolt.
But the built-in (regular) HDD shows the following picture:
That is, there is no information anywhere about SMART at all.