In my province, you go mark your ballets, then feed them into a machine - that machine checks for errors in how the ballet is filled out.
For instance, if you could select 8 people for the school board, if you selected 9 it would show an error.
A poll worker would then talk with the person and inform them about what mistake they made, and give them the option to have that section not count, or go fill out a new ballet.
You then put the ballet in a box for manual counting later.
A similar system could for for basically any somewhat "difficult" instructions for voters - you shouldn't assume what they want, you should have strict instructions but if they make a mistake that would spoil their ballet, they are informed of it and can fix it.
For instance, if you could select 8 people for the school board, if you selected 9 it would show an error.
A poll worker would then talk with the person and inform them about what mistake they made, and give them the option to have that section not count, or go fill out a new ballet.
You then put the ballet in a box for manual counting later.
A similar system could for for basically any somewhat "difficult" instructions for voters - you shouldn't assume what they want, you should have strict instructions but if they make a mistake that would spoil their ballet, they are informed of it and can fix it.