Culture shock is a legit phenomenon. I remember vividly moving away for college and having to learn to live in a city where my favorite coffee chain had next to no presence, and it only made the place feel less like home. Relying on strange caffeine is no way to survive mid-terms, let me tell you.
The internet has the power to reduce culture shock just a bit, as you can easily learn about other cultures without having to step foot there. But it can't really translate the experience of living in a new, foreign country.
And as one Twitter user's culture shock thread reminds us, regardless of where you're coming from, you should probably take everything with a large grain of salt.