In my opinion I will say, "No new bitcoin users are not late or early for investment". Because the current market situation is in dip. I think this is the perfect time for investment . And in this Crypto world if you can analysis and read market situation Then you can make money anytime and there will be no time table for your investment.
Always not late become bitcoin user investment, but waiting when bitcoin have dip price for investing. Many people mind said have late to invest on bitcoin after price pump to $40,000 actually is still dip and lower price because all time high price of Bitcoin above $60,000. But new comer on bitcoin have to learn first and not hurry up when investing on bitcoin, waiting time when bitcoin price drop and never hurry up for investing on bitcoin.