Easy Mode - It's not needed, if you can't figure out how to hold 'block' or cry floods of tears everytime you see 'YOU DIED' - this isn't the game for you.
As was said above, the series isn't that hard, challenging yes, but a lot of that is to do with learning the games mechanics, which really aren't that hard to grasp. All that needs doing is having a better explanation of the core mechanics in the tutorial for new players. Humanity, kindling, bonfires, weapon upgrades and covenants just need some sort of simple explanation on what they actually are the first time you encounter them in game and 90% of new players woes would be gone.
People on different difficulty modes in co-op/PvP, how does that work other than splitting up the userbase? It doesn't and any attempt to still have everyone playing together but with baby moders having more health or something like that - would just be exploited, ruining the online completely.
100% Offline Baby Mode is the only thing I would accept. Kind of like older games where you pick easy mode and it's only the first few levels, you are punished for being a pussy.