How long do we need for The Market to automatically converge on a single plug? By my read they've had over 12 years to do it and Tesla still has a custom connec

How long do we need for The Market to automatically converge on a single plug? By my read they've had over 12 years to do it and Tesla still has a custom connector. Are they offering their superior connector to other manufacturers and they're not buying? Are there extreme patent fees on the predominant connectors? Why do you think standardization would be bad here, specifically, right now?