It made sense in DOS2. I don't think it does for BG3. Please no to the companion commitment.
We don't know this yet. There may be some story contrivance to justify it.
Personally I don't want character lock-in either. I want to grow attached to my party members, and having a stable of backups lets you swap them out for different utilities as the situation demands. It was slightly more justifiable in D:OS2 because anyone could do anything and could be re-specced on a whim, but with D&D you're locked into your class and I guess now limited to 4 of them? woof. I want to choose my party for personality and not be forced to bring someone along because I need their skills.
