Unfortunately the constraints it sets make community fiber projects much less attractive. Should communities be forbidden from building out water mains or roads

Unfortunately the constraints it sets make community fiber projects much less attractive. Should communities be forbidden from building out water mains or roads, because they might compete with the private version? It's not clear to me that I'd want fiber to be government owned and operated in general. But neither is it obvious that cheap government fiber is bad. Aren't local communities the perfect place to experiment?