why did you choose altcoin?
Some altcoins are good for day-trading, short term trades and scalping.
Their price behavior is a good opportunity to take advantage of their price volatility which can result in a decent profit in just a matter of a short period of time. Vice-versa, it can also lead to a loss in a matter of short time.
because altcoin is an alternative coin other than bitcoin, other than that the price is cheap and can be affordable by anyone.
Bitcoin is also affordable for anyone. You don't need to entirely spend a $10,000 just to have a bitcoin. A fraction of it is enough.
usually they have big users,
Much better if we say, they have more whales.