Somehow, DCA is a friend of newbies. First we are talking about Bitcoin a volatile asset which is not without emotional pressure of timing the market, DCA strategy helps to undermine these emotional stress. Through investing small always(DCA), you go on learning other things about Bitcoin investment while already building your portfolio that can amount high in future.
If we are talking about buying Bitcoin in the amount that one can afford and buying Bitcoin in fractions, then we will say the DCA strategy is there to help people invest in Bitcoin. However, when we say the DCA method helps to overcome or avoid getting emotional in Bitcoin investment, that is not true.
For you not to get emotional when investing in Bitcoin, you first have to understand Bitcoin, understand the volatility of Bitcoin; this is the main reason why people get emotional because when the price of Bitcoin falls, they think they have also lost to the market. The DCA method serves a different purpose and has nothing to do with Bitcoin emotions.