Why many sites do not use geolocation?

Today, many companies are not limited to one city, and go to the Russian and even international level. The terms “globalization”, “transnational corporations” are constantly heard.
Constantly asking myself the question, why is it that what is described in almost every design book / usability with such difficulty enters into real life?
Of course, companies such as Google, Yandex know what geolocation and geo - targeting are — this is what allows them to earn better on bread.

But after all, geolocation makes life easier for ordinary users! No need to make extra mouse clicks and look at the information that is useless for you. Under the cut are, I think, already many of the annoying elements of the choice of a city from different sites are given.

Cellular operators

Mts

Beeline

TELE 2

Banks

Alfa Bank

Sberbank

URALSIB

miscellanea

APC

Euroset

Messenger

GISMETEO

Tape

And in fact

Conclusion

It is clear that for those not living in default city, such unreasonable behavior of sites will be quite annoying after a while.
Can something justify this behavior?
Not! The accuracy of geolocation is quite sufficient in order to make the life of ordinary users more convenient.