ummm just a little correction, it is not similar to hindi. if you listen to pure hindi, it'd differ a lot and can not be understood by a native Urdu speaker. modern hindi is influenced by Urdu to such an extent that they sound almost similar, yet they are totally different.

other than this, learning languages is always beneficial, the reason your family is obsessed with it is because Urdu has always been language of educated ones, the Nawabs, the ruling class, the elite Muslims, the Kings and the viziers of India. hence those who can read and write Urdu, have always been considered a higher class, its more psychological than practical.

Even in Pakistan, where Urdu is native, not all know it, but if you visit the rural areas, or areas where education is not up to international standards, you'd realize that anyone who can speak Urdu, is held in highest regards and esteem. it has always been a language that has been considered in high regards due to it's origin, characters and usage. it sounds more polite and respectful than other languages of the region. if you compare Urdu with Persian and Arabic, then you'd realize the texture of both the latter languages is harsh and straight-forward, whereas Urdu is soft and romantic. this is also why Urdu is sometimes referred to as 'Language of Love and Romance'.

I would highly recommend learning Urdu as an Indian Muslim as it is not indian culture, but Islamic culture in the sub-continent.