Yes, i already know that this could cause abuse over the planet freebies, but hear me out:
You know how you can change between rancher and merchant four times? well what if you could do the same with moving to a different planet, and lets say, you can only do this three more times so you have the chance to live on each planet and then you have to buy a 'Planet token' or something from the CS shop like with the rancher/merchant tokens to stop the abuse of over use age.
I say this, because when you are a new player, you are necessarily, not aware of each planets advantages? so it gives you an opportunity to move planets.
What do you think?
Problems i have already thought of:
Freebie abuse
Overcrowdment (not a real word, but you know what it means.)