The best time to do it was always in the past and not in the present. However, we cannot go back in time and so we have to deal with the present and before another regret comes, do it presently so that not another opportunity will be missed.
The key to investing is to start early, so if someone has the opportunity to invest now, then he should invest now. There is no need to buy in large amounts, with accumulation or DCA one can build their investment portfolio slowly while setting goals for how long they hold it.
Because if someone delays investing now, then they might miss the opportunity to get bitcoin at a cheaper price and the opportunity to get potential profits more quickly. If you are still in doubt, do accumulation or DCA, because it is the most appropriate method for people who want to start but are still learning.