It depends, because there are some hour wherein you have slack time to or break time, then maybe it is okay, for as long as you are not in service industry, as I do trading when I am done with my work and still have time to do it, I make sure that I am maximizing my time and fund, as I don't want to missed a day too. But, if I am too busy at work, I am focusing on it as well, so I don't think it is unfair.
With available mobile apps you can trade from anywhere! I believe that many people use trading mobile apps, but I'm
not one of them. Mobile screen can't be compared with my 25 inches monitor, where I have everything that I need.
Trading and crypto-currencies are hobby for me, when I have time I sit on my computer and I do what I need, but
in the mean while I have job and family, so I can't spend every minute on the app trading.
That's the advantage of having mobile app and internet over phone, while you are on your way at work or during your lunch break and while on your own way home you can have the ability to trade using your phone, so it is really important that you can analyze market as much as you could so you can have trade for a day.