Pantropy during the early stages of terraforming, then it just sticks.
Say you have a world that should be shirtsleeve-habitable for unmodified humans in just, oh, three or four centuries. So the colonists alter their offspring to meet the terraforming project halfway. A modified colonist will be able to survive outside in a century or so. Much better for their mental health that they could go out, in case a seal breaks. And by the time a baseline human could survive outside, will the colonists change back? That's assuming the pantropic mods can survive in earthlike environments.

Terraformed worlds can be visited by everybody.
That's assuming space travel is reasonably easy. Once you go through the effort and time of terraforming, you can attract visitors and immigrants without multi-generation schemes to alter their offspring.
An artist could come for a tour, a scientist could come for a conference, and so on. That means you can attract top talent to your world.

Pantropy during the early stages of terraforming, then it just sticks.
Say you have a world that should be shirtsleeve-habitable for unmodified humans in just, oh, three or four centuries. So the colonists alter their offspring to meet the terraforming project halfway. A modified colonist will be able to survive outside in a century or so. Much better for their mental health that they could go out, in case a seal breaks. And by the time a baseline human could survive outside, will the colonists change back? That's assuming the pantropic mods can survive in earthlike environments.
(Various writers have expounded on how supposedly the first generation builds things, the second maintains them, and the third lets maintenance slide. So it is a bad idea to rely on domed cities for centuries.)

Terraformed worlds can be visited by everybody.
That's assuming space travel is reasonably easy. Once you go through the effort and time of terraforming, you can attract visitors and immigrants without multi-generation schemes to alter their offspring.
An artist could come for a tour, a scientist could come for a conference, and so on. That means you can attract top talent to your world.

Pantropy during the early stages of terraforming, then it just sticks.
Say you have a world that should be shirtsleeve-habitable for unmodified humans in just, oh, three or four centuries. So the colonists alter their offspring to meet the terraforming project halfway. A modified colonist will be able to survive outside in a century or so. Much better for their mental health that they could go out, in case a seal breaks. And by the time a baseline human could survive outside, will the colonists change back? That's assuming the pantropic mods can survive in earthlike environments.

Terraformed worlds can be visited by everybody.
That's assuming space travel is reasonably easy. Once you go through the effort and time of terraforming, you ca attract visitors and immigrants without multi-generation schemes to alter their offspring.
An artist could come for a tour, a scientist could come for a conference, and so on. That means you can attract top talent to your world.

Pantropy during the early stages of terraforming, then it just sticks.
Say you have a world that should be shirtsleeve-habitable for unmodified humans in just, oh, three or four centuries. So the colonists alter their offspring to meet the terraforming project halfway. A modified colonist will be able to survive outside in a century or so. Much better for their mental health that they could go out, in case a seal breaks. And by the time a baseline human could survive outside, will the colonists change back? That's assuming the pantropic mods can survive in earthlike environments.

Terraformed worlds can be visited by everybody.
That's assuming space travel is reasonably easy. Once you go through the effort and time of terraforming, you can attract visitors and immigrants without multi-generation schemes to alter their offspring.
An artist could come for a tour, a scientist could come for a conference, and so on. That means you can attract top talent to your world.