Ahh I love these questions about the MC. How about yourself? Would you be able to share your MC DnD character class?
there is a few of these I can comment on myself.
#4.) this is such an interesting conundrum. As a parent myself, I've thought about it as well. The whole Isekai genre tends to be a sort of coming to age story. hero's adventure type, where usually the protagonist leaves behind a life that was empty and burdensome with little to no love, family ect... I guess closure might be more possible if the MC was officially "dead" in their real world life, that their loved ones would have to mourn normally as anyone else would who lost them by normal means.
#5.) Imo, there is a power imbalance in most of these kinds of set ups where the MC is a savior type character bestowed upon another world to save the people there. I think the main cast in ADW does a good job keeping their boundaries and staying self aware and level headed, and using the MC's power towards self improvement and ultimately staying self reliant. Even super devoted characters are willing to part with the MC and accept their 'transient' experience with them as precious but fleeting. In ADWVH I wanted to explore how this dynamic would work with characters who lack this kind of awareness and boundaries, but pursue the MC to their fullest desire, hence why even a 'good' character like Deita still had a bitter ending.
Thanks so much for sharing and giving me some food for thought. I'm sorry I haven't checked pending messages for this project much so I was a bit late finding this one.
Best wishes!