Iagon, SIA, Storj, Filecoin, Golem ect ect

So many projects are based on this idea of decentralized file storage, I myself struggle to see why an average user (someone like my mother) would want to use a decentralized service rather than dropbox to store compilation of vacation pictures and videos (or whatever she stores).

But I'm no data scientist or cloud computing expert ya know? So my perspective is probably very biased and misinformed, ultimately I can't envision that SO MANY smart people and entrepreneurs would be dabbling with this business model if it doesn't have huge potential to impact current systems.