Re: OOC
Hmmm. This is going to be a bit of an essay, if you do not mind.
I do think allowing 1st level characters to scribe scrolls does very much lower the value of found scrolls. It does not make them useless, since a found scroll still has their own value, but the availability certainly does lower their special nature. You can make the same argument for wands, or any magic items. If it goes to being available only by luck, adventuring, finding, theft or rewards to being available simply by time and money- it is less special.
It also very much changes the dynamic of the game. Let us say we major treasure cache and com home with 1000gp. Split up between us, that is a nice amount about 150gold or so? But suppose we decide instead to use the entire amount for the mages to scribe ten sleep scrolls on the assumption that will allow us to find even more. That is a tremendous amount of available magic for a 1st or second level group to have, and after buying the best armor and weapons, there is little reason not to start doing things such as that.
And not just us- why would not every NPC mage with some time and money not scribe several extra scrolls just for use in emergencies or when they have different spells memorized? (Which leads to more scrolls in the game, once they are defeated, or more deceased PCs, if they defeat us.)
This is also a basic D&D game- it is a challenge in every way. We even use the 3d6 straight down method for stats. This definitely removes a great deal of that challenge ad is a pretty major ru to change. Why this one and not others?
Plus, thematically, unlike later versions, magic is exceedingly rare. This does removes that rarity.
So, in many ways, not making the change seems like the best course of action for this particular type and style of game.
On the other paw, it is a game, if the change makes things more fun, then it is a rue best changed. Also it always made little sense to me that a mage could write a spell that she knows in her book, but not on a piece of paper to read later. So it would be logical to assume that they could write a scroll, and if they wrote it, I would assume that they would not need read magic to use it, but that other mages would need a read magic first.
Plus, as a fighter with 3hp who intentionally did not take the best armor and who is using an unwieldy pole as a primary weapon, this change could certainly help keep Leah alive.
Overall my feelings are mixed.
As a cruel dungeon mistress, I would stick with the rules as written if that is what we are doing with the rest of the rules. But I am not such a DM. ^_^
And given each one takes a week, it is unlikely that the rest of the party would sit around and do nothing while the mage is scribbling away for two and a half months making scrolls- even if it would save lives. Devin, for instead, would not wait even a day before setting out on his own.
So I would offer a halfway point- allowing 1st level mages to do so, but there would be a very big cost involved to explain why they do not do so frequently and to keep the magic rare.
Perhaps it is only 100gp for 9th level mages, bit it is 100gp extra for every level you are below that. So 500 for a 5th level mage, and 900gp for a first level mage. The option is still yours, but it is no longer a casual decision. That 1000gp bounty will only create one sleep scroll instead of ten now- not enough to complete put an entire section of the dungeon to dreamland, but maybe that one will make the difference between party life or death.
Or perhaps instead of an extra gold cost, we take an idea from 3rd edition and assign an xp cost for someone who is below 9th level who makes scrolls. Again, it is possible, but definitely explains why few mages below 9th choose to make spells. It would not have to be a heavy amount of xp, since it tends to come less quickly in old school games, but even something like 10-25xp would give one pause.
Or perhaps there is additional time that it takes for a lower level mage to scribe scrolls. What if it was a fortnight or a month instead? That would dissuade casual scroll making, perhaps leaving it for winter times, but still leave it a possibility. I do not particularly care for this idea, since it takes the player out of play for an extended time- and we have already discussed that above.
Overall, this is my way to use 866 words to say- I don't know.
But my vote would be either no they cannot, or yes they can but with an additional cost of some sort.