As in many other games, they can make main maps where there is no Tek (or even limit by stages) but that you can migrate your same character to other maps where there is, not allowing you to take any of these technologies or you could not use them.
With this, you could have players who want the primitive base feeling in an initial map, then another the same but with all the technologies you want, in the same way with specific PVP maps where also the rates are much higher to compensate for the risks. Or even that the PVP is only activated at certain hours, days, scenarios.
Another option again with this PVP is that it limits what you can transfer resources, dinosaurs and / or technologies (it would be something to analyze) in and out of those worlds, for example allowing you only to transfer limited amounts and equipment / mid-tier dinosaurs.
There are a thousand ways to satisfy everyone and without limiting ourselves, being able from the beginning to have basic servers and PVP servers and later other themes with new technologies ... but being able to continue playing with your friends on the base map without affecting anyone ^^.
Personally, I would like the base server to be like a "Beginner" or "Primitive +" but then you could go to others with hardsurvival, PVP, casualPVP, Hardcore, allTech, "Survival of the fittest" (missions with their rewards), etc functions with your same character and only transfer limited things without greatly affecting your main map
Every variety is good, we all want to try different things at some point, being for some more common to use one or the other ^^.
The biggest problem in the game would be dealing with the problems of overpopulation, predatory / passive construction and others.