You need to keep updating your knowledge about software, programs, and ways to protect your bitcoin. You need to take as many precautions as possible to keep your digital money safe.
You really don't have to if you keep your an offline wallet instead. It's not connected to the Internet, so it will be impossible for hackers to steal it. Only one who will be able to steal it is someone who was able to find your wallet seed. You have to physically protect it then like put it in a vault. Put very little amount of coin on the Internet, just the amount you're okay to lose potentially.
Wallet security is relative because it depends on the owner of the wallet itself wants to try more to secure their wallet or not. if they are aware of the security of the wallet it is necessary then they will definitely use 2fa in each of their wallets. so their coins will remain safe
Let me give a scenario where that might fail. Someone borrows your phone saying they're just going to text somebody or do something real quick. He goes to your wallet, finds that there's 2FA, goes to Authy, then accesses your wallet. Now the tricky part would be entering their wallet address as it is a combination of random letters and numbers. They get their phones out of their pocket and scan their QR code. Done. That's less than 2 minutes. That's why I never let people borrow my phone. They might find something in there that they might want to get. After all, I wouldn't immediately think it was them plus I would have no way of proving the wallet is belongs to them.
As a matter of fact, Bitcoin is only safer than the other currencies because it is quite difficult for hackers to steal Bitcoin. However, you should be careful when storing Bitcoin in your online wallet especially with people who owns many bitcoins. Because Bitcoin is in online, no one makes efforts to create a safe cryptocurrency market.
Here we like saying "With bitcoins, you are your own bank", correct? As your own bank, you're going to be the one responsible for keeping your coins safe. No one's going to make a safe market because a crypto person's world is just as safe as they made it to be.