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.