Bitcoin Price grow up day by day because mining fee increase because if you don't give more fee then your transaction is complete with long time. For that you have to you give more fee to complete your transaction. and the miner get more profit form mining reward. After that everyone increase use bitcoin for that grow price day by day.
The price is growing the first of all from growing interest to this currency. Bitcoin is on demand now and new people join the crypto world daily.
Yes... You are 100% right. Every day Become interested in crypto World Daily. now big Market capital in crypto currency and its grow up more and more.