Is it worth creating autotests for the mobile version of the site?

Question

Automation

Hello.
There is a site and there is a mobile version of the site.
About 90 autotests have been created for the desktop version, and now there is quite a lot of code (page objects, etc.).
Is it worth creating autotests for the mobile version of the site?
In fact, the site will simply open in the browser with a window width of 500-700px. I doubt this is the correct approach.

Answer 1

why do you doubt?
If some block, for example, overlaps the buy button in mobile layout? At least the main useful scenario should work, in the store it is
to go from entering the site to completing the order
hidden-xs

Answer 2

If autotests are written adequately and there is no black magic in the logic of the service when the user logs in from different browsers or from mobile phones.
It is not difficult to run tests on different browsers and a trite mobile phone emulator and is done quickly and easily.
As far as I remember, there are nuances when working with the calendar on mobile phones.