I'm not sure I see the value in this. So the two scenarios you describe we have:
1. A player that can change groups at will but with restrictions i.e. not during combat etc.
2. A player that is stuck in a non-PvP mode and can never be engaged by those that want PvP.
How does scenario 2 satisfy those that want forced PvP? At least in scenario 1 you have the possibilty or meeting this player. In 2 you will never see the. Surely 1 is the better choice here? I guess I'm just missing something but I don't see how giving other players a choice of how they want to play in any way detrimentally affects those that just want to PKill.
If this route was chosen, all of those that want group switching may chose for the permanent solo mode and in that case you will never see them anyway. Logically it makes no sense to me.
And on top of that, what about all of those players that you just forced into SP/PvE mode that want to play in groups with other like minded players? You just denied them that right.
No. People can choose to play the game in
any way they choose. Choice being the operative word. If they choose to create a solo-only character they are safe to do what they want. If they want to interact with others by creating a ALL group character then they must be prepared to encounter others all of the time, not just when it suits them. If that is a problem they can always just relax with a save game in one of the other groups and play in ALL another day ..
This isn't about denying people choice. Its about protecting the integrity of those who choose specific groups and levels of interaction from being undermined by those who group hop to min/max or otherwise game the system/s.
I want you to play how you want to play. Have as many save games in as many groups as you want. The caveat is: you can't grind away alone and then transfer that 'achievement' to a character in another group. You have to earn everything in each group and by requiring this everyone has a better gaming experience secure in the knowledge that they are always encountering others who have worked just as hard as they have and who they can respect and enjoy playing alongside or against.
The net result of this is that long term, the solo and co-op groups will be full of people will billions of credits, all Elite, with all the best ships etc. But those who choose ironman or ALL will be more likely to see a more balanced and long lasting representation of achievement.