Making a point on the challenges of investing. Dollar cost averaging is a lifesaver for many which tends to remove the pressure of timing the market but then, investing in bitcoin shouldn’t be hard for someone who knows about bitcoin in as much as he or she is earning and has a source of income. The ones who wait and complain are probably people who don’t understand bitcoin or people who aren’t working and don’t have any means of earning.
People who still complain about doing something worthwhile like investing in Bitcoin are those who don't have a steady income, so they're more likely to act like that when it comes to buying something, even a well-known and relatively good asset like Bitcoin. So, guide such people with brighter ideas so they can realize that buying Bitcoin doesn't require waiting, which ultimately just wastes their time. But if they refuse to listen to your or anyone else's ideas, then just ignore them. Your time is too valuable to waste on people who refuse to accept input from others.