It is considered rude not to try to speak a little Spanish (even though many Spaniards - especially in tourist areas - speak English).
It is also considered rude for American tourists to wear shorts along with loud colored (e.g. Hawaiian style) shirts.
It is considered rude to speak loudly in close quarters.
It is considered rude not to provide a tip to those in the travel, entertainment and hotel industries.
And there are many, many more examples.
what's the considered rude or polite of Greenland
It's considered rude everywhere, not just Germany.
Asking someone for their pronouns is not considered rude; it shows respect for their gender identity.
its not considered a swear, but it is considered disrespectful and rude,
Not to visit.
No, it is not considered rude to speak Spanish in Barcelona. Spanish is one of the official languages of Spain, along with Catalan, and many people in Barcelona are bilingual in both languages. It is generally appreciated when visitors make an effort to speak the local language, but most people in Barcelona will also understand and speak Spanish.
Tourist might visit Spain because they are very rich and good in business.
Yes, it is generally considered rude to read a message and not reply, as it can be seen as ignoring the sender or not valuing their communication.
No, it is not considered rude to ask someone their pronouns. In fact, it can be a respectful way to show that you value and respect their gender identity.
In some cultures, it is considered polite to say "bless you" when someone sneezes, but it is not necessarily rude if you choose not to say it.
Yes, eavesdropping is generally considered rude in social situations as it involves listening in on private conversations without permission.
Spain is a beautiful country for tourists to visit.