Pwrsonally I don't see any other coins that are worth daily trading besides Bitcoin. Also, day trading is very demanding, it requests a lot of experiences and knowledge and your full attention to the market so it would be very hard to follow this for multiple coins. But maybe there are some successful traders who could manage that also.
I think the same, I like to trade with bitcoin and ETH because for me both of them are really good coins to trade for day, as price rises faster in day trading, it has more potential and it is first crypto currency, we will see progress even more with passage of time, trading is the beneficial only with bitcoin not any other coin.
Yes. Bitcoin and ethereum are still my good choices for trading cryptos because these two have good start already that we can really make huge profits especially if we hold them for long years. There may be a lot of altcoins out there but only few of then will sure to pump and the rest of them have only become shitcoins.