In some places in Europe, the home internet ADSL technology on the copper wires, the same as used for PSTN phones, delivers higher speed (realistically an order of a few Mbps, stable) compared to congested LTE/4G mobile networks (typical 1-3 Mbps). The mobile network providers don't guarantee minumim speeds in the contracts, and customers (typically older people) that move from ADSL to LTE/4G, are left with a degraded service without a possibility to object.
compared to congested LTE/4G mobile networks
...which will get even more congested as people continue to migrate to using a network designed for mobility for devices which don't even move.
Imagine thousands of devices, most of which never move, sharing one WiFi access point.
I don't think regulation is the answer, but maybe a "mobile networks are for mobility" awareness campaign might help fix this stupidity.
Copper dsl remains working just fine - my last place was copper on a cable through the air and was 30 down 8 up. Not bad on wiring installed in the 1960s
No phone signal of course.