Are some languages better than others? I think that because it was reported in the field by a linguist. Sicilians do not use future tense and are widely regarded as being short-sighted/fun-loving. — I like sushi
Your original claim was that one determined the other:
If you lack use of tenses (like Sicilians) then you are less likely to plan ahead — I like sushi
Did your mysterious linguist present evidence for the link, or just the lack of tenses? Nobody has argued with the latter.
And whether or not Sicilians are “widely regarded” (by whom?) as short-sighted is irrelevant. Is this more than just the stereotype it appears to be? Maybe what some mainland or Northern Italians habitually say about Sicilians? At most it sounds like a cultural trait that has nothing to do with the language.
German clearly impacts Germans too. There language is particularly literal and every european I spoke to living in Berlin remarked about how literal Germans were as the most significant cultural difference. — I like sushi
People say this kind of thing all the time. It’s just folklore. Or as
@Hanover puts it, horseshit.
The fluent speaker of a language is an expert
user of that language, but not necessarily an expert otherwise. An average German can’t be trusted any more than an average Mongolian to assess the extent of linguistic determinism among Germans, so what Berliners happened to tell you is irrelevant.
EDIT: I misread your comment. You actually mentioned what Europeans said, rather than Berliners. Well, that’s equally irrelevant.