Many people are confused of Bitcoin and mostly mother's having double mindset of what bitcoin can buy.
Bitcoin can not buy anything. Itself it can not. Must have an agreement between a buyer and a seller to use Bitcoin as a payment method for their deal.
But i wasn't bias on the question because i know that Bitcoin is a digital currency and it can buy things for the country that approve it as a legal tender, and with Bitcoin profit you can buy things for shop's that accepts bitcoin for monetary transaction's.
It is not a digital currency too.
Bitcoin is a mean or a payment method and you can exchange your Bitcoin with other people, exchange it with other things that can be a learning course, a bread or an altcoin. You can exchange it with fun only like lazlo exchange
10000 BTC for pizzas.
When more people use Bitcoin, its value increases and with one
BTC, you can exchange for more things, more pizzas, bicycles, more Cokes.
Bitcoin is not deflation but yeah it is only a meme.