I hope that the web becomes more decentralized. I wonder, what catalyst would cause decentralization? My grandma doesn't care about decentralization and I am no

I hope that the web becomes more decentralized. I wonder, what catalyst would cause decentralization? My grandma doesn't care about decentralization and I am not sure she would be convinced even if I did my very best to explain it to her. I don't think it would change her habit of connecting with family via Facebook and using Google for search, mail etc.