I wonder if it really matters if networks are insecure. I generally connect to the internet via whatever hotspot is available or 4G if not with no expectation that it's fully secure. That's what https and other encryption is for. And I don't generally have anything to hide - there are a bunch of tools like tor and VPNs for people who do. That's probably the way forward - secure tech on your device rather than trusting to the kindness of strangers.
Talking of phone network security one thing that does piss me off is my phone company just transferred my phone number of 10 years to fraudsters who presumably called customer support with some sob story. You'd think they could have some standards to stop that like at least sending an email to your usual address saying "There's been transfer request - you good?"
Ok, but what about SMS, MMS, phone calls, getting your approximate position, ...?
What if they decided to shut down the whole network because of some reason? Then https wont help you.
Talking of phone network security one thing that does piss me off is my phone company just transferred my phone number of 10 years to fraudsters who presumably called customer support with some sob story. You'd think they could have some standards to stop that like at least sending an email to your usual address saying "There's been transfer request - you good?"