If you have not yet started investing in BTC I don't really know what you are waiting for, there is a probability that BTC price mighty hit $200k this year or early next year.
I'm advising everyone kick start now start taking action, move your investment to another level now that you have the chance to avoid regretting in the future when others we be busy cashing out heavy in the future to come.
Your advice does sound wise regarding investing in Bitcoin, but some people may still be waiting for a slightly deeper Bitcoin price correction to dare to buy it at a certain time. Although I am also not sure that Bitcoin will correct again in the near future because I put more faith in the price increase that may occur again in Bitcoin in the near future. Investing is not difficult when someone has the desire to do it, but everything always requires a method and in-depth knowledge so that there is no hesitation to continue doing it in the long term.