For me who is not very active in short-term trading, I think monitoring BTC price movements alone is enough to monitor altcoin price movements too.. now cryptocurrency tends to be a side job that still makes money for our economy, but we shouldn't be too hasty... because every decision related to cryptocurrency has a big impact on our economy....
In addition, when we already understand the basic concept of trading and also have good experience with Bitcoin coins, it will make it easier for us to survive in investing in cryptocurrency.. we will understand more about the crypto world which makes it easier for us, especially me, who for the past 4 years has preferred to study Bitcoin and only a few top altcoins.... I prioritize my focus on just a few coins, so that makes us more focused...especially BTC