(Which of course assumes that there are laws in place against lock-in, just like there are already laws in place against lock-in for your pick of ISPs and obligations for mobile carriers to transfer your phone number to another carrier.)
Thing is, that edge infrastructure has been there from the beginning of broadband and is only recently beginning to slip away, with the advent of ISP NAT, agressive IP rotations, blocking of ports and not providing public IPs at all.