There`s no bad time to get into day trading, there`s just a wrong choice of the coin to day trade with. If you take a look on charts you will see that some coins rise, others are dropping, depending on your choice of the coin you will make a profit or others will.
It might be the case, but newbies who are going into day trading thinking that by just looking at the graph, they could make easy money.
Sooner or later we all make bad trades, buy a wrong coin that drops in price after we buy it, that`s why you should trade with coins you believe in, if price drops just keep it and price will bounce back eventually.
That's also one case wherein individuals doing day trade don't understand. There will be times that we can performed bad trades even if we see a potential profits, that is because market is open and prone to manipulation and they can be swept by this practice. But it's better to experience this early in your journey so that you understand how manipulators do their job and that you can exit on time.