I know this might not be everyone's cup of tea in an RPG, but my character is starting a game with a newborn child she needs to look after.
How much do you think this would annoy other players if I have to always put the child first before adventuring, or do you think it could prove as interesting roleplay.
Character is a very self-sufficient druid that is going to be working with the party to stop the spread of ill-magic in the forest. Child is a half-fey.
Taking a baby adventuring is insane. By it's very nature adventures are filled with lethal surprises. That 1 hit point baby could die at any time.
Growing up twice as quickly is still not enough. In 1 year it may have the capabilities of a 2 year old child, which still has no business being anywhere near an adventure.
If I were a PC in the campaign I'd retire on the spot. I wouldn't be party to recklessly endangering a helpless infant.
I had a vaguely similar situation come up in a Warhammer Dark Heresy game. We had an adult psyker (we were all adults, of course) who had summoned demons, presumably by accident, and we ended up tying her up and drugging her unconscious until we got out of warp. The DM made us roll for injecting drugs, and said that marking the veins wouldn't do anything, so we had to make a skill check every time. We had maybe a 30% chance of pulling it off, each time, plus a limited supply of night-night juice. We wasted a good hour of playtime trying to come up with a SOP for keeping the helpless psyker under control. The DM got cranky. This situation, in game time, was maybe a couple of weeks. Later on we were stuck with a severely wounded eldar that we could not kill for diplomatic reasons, and our attempts to hand him over to "safety" kept failing. We used him as a key. (A lot of eldar technology only worked for eldars, such as a door to a fortress we found, so we rubbed the already-wounded eldar over the control panels to open and close the door. None of the bad guys were eldar, I'm happy to say.)
Keeping a baby safe would be far more difficult. You can't (well, shouldn't) drug them unconscious. Then you need to feed them, deal with poor appetites sometimes, know when
not to feed them (the baby sticks its tongue out slightly, yes that's real-life knowledge), burp them, deal with their limited resistance to disease, deal with waste products, deal with staying awake all night because the baby is crying and you don't know why (there's no Talk With Baby spell that I've seen), carry around a crib and a stroller or baby-carrier, entertain the baby, teach them to talk, keep them quiet when trying to be stealthy, keep them from throwing up, come up with something that will protect them from random area of effect spells, prevent them from getting kidnapped, prevent them from getting lost, prevent them from getting injured in accidents, prevent them from getting eaten by fast-moving predators, prevent them from having the life sapped out of them when you accidentally walk into the Shadowfell (that happened to me in my last game session, and we lost 0-2 healing surges each based on skill checks... babies probably can't make skill checks; I did mention that adventuring is filled with unpredictable lethal effects, unless the DM puts the game on "easy mode" to keep the child alive...), there's just so many things wrong with that scenario. It's the ultimate in bad escort mission design.