Tarawih is a confirmed Sunnah not compulsory. So, if a Muslim does not pray Tarawih, there is no sin on him for that, whether he has an excuse or not. For more, please see the detailed answer.

The Deobandis are one of the groups of Muslims. The Deobandi group is connected to and named after the University of Deoband in India. They follow the madhhab of Abu Mansur al-Maturidi.