Britain has forced companies to lease their networks to competitors at cost?
So anyone could just enter the market?
So anyone could just enter the market?
Keeps the competition going and benefits users.
Better question, why would anyone ever build a network if they are prohibited from making a profit?
Though there are a lot of cell/network sharing agreements in the market (to various extents - some are actually cell roaming but some are just sharing backhaul/fibre/the physical towers):
O2 and Vodafone Orange and TMobile (merged to form EE) Three and TMobile (may or may not include ex-Orange sites, not sure).