One of the factors may be the fact that a lot of second generation Indian-Americans are mostly doctors, engineers etc. It is really in the culture to go for medicine, engineering and sciences as a career.
Within first generation, there is that segment of taxi drivers, gas stations, store owners as well but again, there is a huge entrepreneurial drive in those segments as well and many of them own their stores, gas stations etc instead of just working there. But then again, a lot of first generation Indians are also very well educated and they come for the STEM jobs as we all know.
Within first generation, there is that segment of taxi drivers, gas stations, store owners as well but again, there is a huge entrepreneurial drive in those segments as well and many of them own their stores, gas stations etc instead of just working there. But then again, a lot of first generation Indians are also very well educated and they come for the STEM jobs as we all know.