What do expats find most challenging?

"Expats in Curitiba often find the local culture to be quite different from what they are used to. The language barrier can be a challenge, as Portuguese is the primary language spoken in the city. Additionally, the local customs and etiquette can be difficult to navigate, as they are quite different from those of other countries. Furthermore, the city's infrastructure can be difficult to navigate, as it is not always well-marked or easy to understand. Finally, the cost of living in Curitiba can be quite high, making it difficult for expats to adjust to the local economy," mentioned another expat when asked about moving to Curitiba, Brazil.