The price and, ultimately, the charts on any given exchange are determined by the price of the most recent transaction. How can the prices of 100s of cryptos all move in the same direction at the same time?
As Bitcoin is the highest market capitalization among all the cryptocurrencies we have right now than most of them I believe are just following Bitcoin.
So for me, especially when I am doing trading I rather trade Bitcoin than trading other altcoins especially other high market capitalization altcoins which just correlate with the price of Bitcoin most of the time, so for me, it's just the same, volume on Bitcoin is higher.
It is because bitcoin’s price influences the whole crypto market. So if ever you trade with altcoins, there are high chances that you will fail in trading as bitcoin suddenly dump its price and affects most of the altcoins. That is why most of us would want to prioritize bitcoin trading not only because of its higher volume, but the amount of returns is obviously bigger than trading with altcoins.
Well for this and many other reasons, it is that Bitoin is considered and is the King of everything, because without Bitcoin there would be no altcoins, much less tokens, sometimes it makes me laugh to see some threads where there are projects that say and affirm that they do not they will depend on bitcoin and that they will be bigger than bitcoin, that is a wrong statement that doesn't make any sense, the reason why bitcoin is king, is because it has a life of its own, another altcoin has no life of its own, and if bitcoin goes below, all the altcoins, tokens bleed with great intensity, if bitcoin goes into an upward trend as in 2018, it is when the altcoin season begins.