Torah

Shalom Rabbi (in parentheses, I would love to know how you would like to be called, 'Rabbi' Michael or Michi?)
I assume that studying Torah is one of the most central commandments in Judaism based on many sources, T'T against all others, etc. And I don't understand why it's so important to study Torah. In the old days, there weren't many students and there was a fear that the Torah would be forgotten, but today, there are thousands of students, even if I and hundreds of people don't study, nothing will happen. My question also applies to studying Halacha and the Talmud and the Gemara and the Pentateuch with its commentators, since today there is no shortage of people to ask about Halacha. What's so big about it?