Which sentence is more frequent in real life?

[billmcd]

Thanks for your attention !

I think both forms can convey the message and also it depends on context but I think according to following reasons, the present progressive is more accurate:

1)As far as studying usually has a limited duration , usually a 4-year term , and this fact that present progressive is used for long periods.

For e.g we can say: He is writing a book this year.

2) As I said in my original post , studying a course is not forever. One does not study a course is his/her whole life. So it is not a habit.

I think the correct form should be like this:

What are you studying at university?
I'm studying French at university.

Please note that language is very widespread. There are many dialects which all have the same value. One might think that the correct tense is simple present is this context. But based on evidences which I provide , I think the present progressive is closer to standard or prestigious dialect.

OK. I understand your understanding but allow me to add some final (aren't you glad?) examples in AmE usage compared to your examples.

Your Example "What are you studying at university?"
AmE (typical) "What are you studying in college?" (The speaker may or may not know the name of the institution and regardless of whether the response expected would be a college or university) OR "What are you studying at Villanova?" (the speaker knows where the student is studying)

Your Example "I'm studying French at university".
AmE (typical response to previous question) "I'm studying French" OR "I'm studying French in college" (regardless of whether the student attends a college or university) OR "I'm studying French at Villanova." (response if speaker knows that person asking the question doesn't know where the student is studying)

And finally (again, aren't you glad), a situation/scenario could be made for use of simple present, but I think that's enough (maybe more than enough) from me.

[5jj]

I think both forms can convey the message and also it depends on context

I agree

but I think according to following reasons, the present progressive is more accurate:

I disagree, as you did half a sentence ago.

1)As far as studying usually has a limited duration , usually a 4-year term , and this fact that present progressive is used for long periods.

The present progressive can be used for very short periods.

I think the correct form should be like this:

What are you studying at university?
I'm studying French at university.

That is indeed the 'correct' form - in certain contexts. It is not correct in other contexts.

Please note that language is very widespread.

I think we'd all agree on that. In fact, I'd go so far as to say that it's universal among humans.

There are many dialects which all have the same value.

I don't know what you mean by that.

One might think that the correct tense is simple present is this context. But based on evidences which I provide , I think the present progressive is closer to standard or prestigious dialect.

No, it isn't.

[toloue_man]

I agree I disagree, as you did half a sentence ago. The present progressive can be used for very short periods.That is indeed the 'correct' form - in certain contexts. It is not correct in other contexts.I think we'd all agree on that. In fact, I'd go so far as to say that it's universal among humans.I don't know what you mean by that.No, it isn't.

So, do you think which tense is more accurate ?

[toloue_man]

OK. I understand your understanding but allow me to add some final (aren't you glad?) examples in AmE usage compared to your examples.

Your Example "What are you studying at university?"
AmE (typical) "What are you studying in college?" (The speaker may or may not know the name of the institution and regardless of whether the response expected would be a college or university) OR "What are you studying at Villanova?" (the speaker knows where the student is studying)

Your Example "I'm studying French at university".
AmE (typical response to previous question) "I'm studying French" OR "I'm studying French in college" (regardless of whether the student attends a college or university) OR "I'm studying French at Villanova." (response if speaker knows that person asking the question doesn't know where the student is studying)

And finally (again, aren't you glad), a situation/scenario could be made for use of simple present, but I think that's enough (maybe more than enough) from me.

I asked about tenses but you gave me some explanations about articles usage. There is a sharp contrast between them.
Anyway, thanks for your attention.

[5jj]

So, do you think which tense do you think is more accurate ?

IT DEPENDS ON THE CONTEXT.