What do expats find most challenging?

"Expats in Cardiff may find it challenging to adjust to the local culture due to the language barrier. English is the primary language spoken in Cardiff, but Welsh is also widely spoken, and many locals may not be comfortable speaking English. Additionally, the local culture is quite traditional and conservative, and expats may find it difficult to fit in with the locals. Furthermore, the weather in Cardiff can be unpredictable, with frequent rain and cold temperatures, which can be difficult to adjust to," remarked another expat who made the move to Cardiff, England.