Bitcoin investment is optional, but also someone can be talked with a clearer picture and understanding on how and importance of investing. Most people here who became Bitcoin enthusiasts never knew or understood Bitcoin just by themselves, many were talked in from discussion with friends or families then with own further enquiries. As time goes by, knowledge is spread and further adoption begins, a few people who are currently in the Bitcoin market currently, years back a good number of them where all Bitcoin critics but what remains constant is change and it has strongly impacted Bitcoin adoption.
Honestly, for someone to invest in Bitcoin, it is a matter of choice. The truth is that Bitcoin investment is a good investment. Many people have made huge profits from their Bitcoin investment, especially those early investors. In fact, from the history of Bitcoin, it has proven to be a good investment, and I don't think people need to be advised to invest in Bitcoin or made aware of it anymore, because I feel Bitcoin is no longer new to the world. The number of people involved in Bitcoin is everywhere.However, if anyone is still interested in raising awareness, it is a good idea because those who never thought of doing research on their own can learn early, and from there, they may start their own research.
As much, there are those who procrastinates alot, not because they are not interested or are no financially stable to set up their investment portfolio but are just a feast for procrastination and most of the times reduces great chances of acquiring Bitcoin at a more decent price than they should have, just as exemplified by OP.
Yes, there are some people who have basic knowledge of Bitcoin and a little money to invest in it, but because they want to buy the dip, they keep procrastinating. Even when the Bitcoin price dips, they continue thinking that it will drop further. Due to this procrastination, some people had the opportunity to buy when it dipped to $20k, but they thought it would go lower and kept waiting, planning to buy when it hit $19k. When it reached $19k, they still kept delaying the purchase. This habit of procrastinating has caused some people to lose their opportunity to invest in Bitcoin, as they ended up wasting the money on other unnecessary things.