It is quite fine and normal to engage with caution at the beginning of your involvement in Bitcoin until you're fully convinced that it's a good investment, I did it myself and learned over time of it's credibility. No one comes into Bitcoin as a newbie figuring it all out, but we get better in our knowledge of Bitcoin over time as we remain consistent.
The greatest error is to do nothing and just observe. You get nothing from doing nothing and you don't get better at something too if you aren't action mined. Potential investors who have discretionary income available, but refuse to get involved in Bitcoin end up in regrets as Bitcoin price heightens. The best thing is to start small and the more you learn and get convinced, the bigger your commitments to accumulating Bitcoin more aggressively until you acquire a decent stash of Bitcoin.
I agree with your point, as a beginner you have to take cautionary measures, especially in keeping your mnemonic seed, and passphrase safe, and making p2p transactions. though before I started accumulating bitcoin I had already gained enough trust just by relating with comments and thoughts of other experienced enthusiasts here in this forum, and that helped me gain confidence, at first, I thought you'd need a lump sum to accumulate bitcoin not until I found this tread and learned about DCA that was how I made my first accumulation journey. one of the things I love about Bitcoin is that both the rich and poor have the opportunity to use it and accumulate to their desired amount. However, there is a limited amount in circulation but that is also another important feature of Bitcoin and the reason why speculation says bitcoin will keep rising irrespective of the small bearish movements or sideways trend we see in the market often.
procrastination only ends up in regrets. those who procrastinate going into long-term holding will only discover that the price keeps going up and the further you see the price go up the more you begin to lose faith as a beginner. But the truth is, you can always buy and still make a profit using a long-term plan. take for instance, those who thought the price of bitcoin had gone up too far in 2017 only had to wait till 2018 to discover that the price has gone up above 2111% one thing I like to tell beginners is, to forget about the previous price and take the current price as your start up there is going to be some profits coming around.