In spite of being arguably the oldest language of the world, Sanskrit is very much alive. Several universities, not only in India but all over the globe, offer courses in Sanskrit. Sanskrit is one of the 18 plus official languages of India. Films are still made in India in Sanskrit.
News are broadcast in Sanskrit both on Radio and TV in India. Books are published totally in Sanskrit. There are some places in India where nothing but Sanskrit is spoken. There are musicians/song writers who compose songs spontaneously in Sanskrit – such as my spiritual Guru Sri Ganapati Sachchidananda Swamiji. Poetry is still written in Sanskrit.
Lots of Yogis and Yoginis, living in various countries, learn Sanskrit to improve their understanding of the science and art of Yoga. I live in Canada but I teach Sanskrit over internet to people living in other countries….
So, is Sanskrit a dead language….far from it!!!