[throwaway4747l]

I think GP isn't talking about the passport acquisition process but really the experience of living there. The culture shock is real and you're in for a rough surprise if you think Europe is anything like the US. For starters, you're going to find your that the role of English as a lingua franca is largely overstated. Depending on your personality, you may not completely adapt and end up going back home.

[Mediterraneo10]

Yes, but the experience of living there might be very different for the highly affluent people who can invest over a million euro in a citizenship-by-investment program. Many of them don't do their own shopping or will ever deal directly with a plumber or electrician – that is all taken care off by hired staff. Opportunities for culture shock are limited because they have little exposure to the overall local culture, instead they live in a cosmopolitan bubble with people of similar wealth.