Building codes serve a few functions. The most important one is safety. But another is ensuring that your home does not fall to pieces in 10 years (after the builders are long gone) by forcing certain minimum standards of construction.
To the latter end, I think building codes for multi-unit dwellings should require that each and every single unit have a single fiber drop in the unit. I assume there are standards for phone hookups today (and possibly cable), and the fiber standard would have a very similar purpose and structure.