Tracking daily and even weekly fluctuations in the market is difficult, especially if you are new, so you will be more likely to buy coins and hold them for an average of one year, during this time you will understand how the whole market works and find a suitable trading strategy for yourself.
No, it is not difficult at all. It depends on the interest and goals of the individual. If he is willing to become rich in as short time as possible, he would do this much work with a smile on his face. Checking out the value of bitcoin or any altcoin twice or thrice a day does not take more than a minute. Indeed, it is not a lot of work. But as I have already said, it is entirely a choice of investor.