Many people are expecting Bitcoin to go down to 10k before they start investing, well not a bad idea but sometimes your expectations might not come true, just because bitcoin was 3700$ in match 2020 doesn't mean we might see 10k per Bitcoin, remember it was because of CoViD that's why BTC plummeted to 3700$, the best strategy is DCAing, 17500$ per BTC weeks ago was a good opportunity honestly, for the short time some said but might be the last for the long term too, instead of guessing and making predictions avoid sitting on your hands and do nothing.
There is no wrong if you always seek for the best entry as that will help you maximize your future profits. However, in a market that is so much unpredictable and that bitcoin is highly volatile, you will never know exactly when is the best entry and the best exit. The most important is that you got to grab every bit of opportunities that is happening in the market, otherwise you'll be left behind. So do DCA now, as its the most effective way to increase the volume of your bitcoin and make your portfolio profitable in the future.
Newbie should do DCA because this could practice their patience towards their trades and as well they can learn more from their daily activities by looking at the market volatility. Although its really hard to spot the dip to maximize our profit but we should always put this as a goal that whenever we are in profit we should exit so that we can continuously accumulate rather than waiting for more pumps which we didn't knew if this one will continue and might this will cost us losing our all money if we are so careless on our trades.