A lot of people have always worried about the security of bitcoin and cryptocurrency which is why they have decided to stay away from investing in it. You must also note that even the fiat money that you may have can also be liable to theft. The earlier you stop giving flimsy excuses, the better. The decision is yours!
Just like money, if your bitcoin wallet is left unsecured, then it's going to be found by someone and it's going to be stolen from you. We've been in this forum for so long yet there has not been a report of a stolen bitcoin that wasn't the person's fault. It was either stolen by someone around them or they got confused and uploaded the private key instead of the wallet's address. I think people are more worried about bitcoin turning out to be just one huge scam and millions of people got tricked by it. I don't worry about that for I understand this stuff and how the price of bitcoin ended up to where it is right now. To simplify, people are scared of what they don't understand and bitcoin's simply one of them. Sadly because they are not putting the effort to enlighten themselves about the topic.