Again: what is the TAM for this, and if you are talking about North American exurbs/rural areas, why is this being marketed for international travelers? What I

Again: what is the TAM for this, and if you are talking about North American exurbs/rural areas, why is this being marketed for international travelers? What I am trying to say is that, while I am certain that you can fund this useful for a segment of the population, how big this segment needs to be in order to become valuable for (a) advertisers and (b) investors willing to sink money into it?