I'm 45 years old, my parents asked the same things about me.. the screen wasn't necessarily a pocket companion at the time - but it was computers, consoles and hand-held devices and all the stuff around them.
At first, they fought me... and it was a dumb battle for battles sake. My parents never bothered to understand anything I did and generally just gave up and let me do whatever...
Turns out, they were in the midsts of a relationship failure and there was no time for the kids, so they let me have at the computer...
BUT... It worked :) I taught myself programming, operating systems, I ran a BBS that was the first BBS in texas to offer Linux downloads, I got published in books/magazines/journals talking/writing about OS/2, Linux and DESQview.
In the end, I never went to school, my parents relationship was still crap but I made friends, found my wife and still work online to this day..
My kids are 13 and 17 and its new battles... but i just think back and remember where I started - I try and fill in the gaps of just "Caring" in general and just "wanting a relationship" with my kids in general - and i do that in lieu of trying to prohibit something that is already pervasive in their lives.
Yes, I run firewalls, safety, anti-virus, family-safety, yes there are some things blocked - yes their phones have family safety too but mostly to do what I can to protect them from maliciousness.
The last battle any parent can or should fight is the battles of pop culture, society and social interactions... espeially a year+ into a pandemic.
we had to re-think the whole grounding from devices during pandemic because that was suicide to a teen... and in doing so - it sparked conversations we weren't having and made me realize i was just following in the same ignorant foot steps as my parents.
Kids will get burner devices if they're grounded, they will jailbreak/root phones/devices to bypass controls, they will buy sims at 7/11 to get around time/restrictions - they may find a drawer of old devices and keep one alive for tethering and many other things - lock down their PC? they will install bluestacks and have unlimited android environment...
It's crazy
But damn, if they're doing all that effort and learning/collaborating on all that - they're getting skills that i find many adults still lack