well really paper wallets are not something new and have been used for quite some time, I actually still use them, it is a very safe way to store your funds in the long term and that you can sleep peacefully, especially in Bitcoin.
And this depends on the person, if you are a careless person and you do not care about the safety of your funds, then it is not a good option, but the paper wallet in this case is not that it is insecure, the one who is not safe is yourself.I have seen the possibility of having paper wallet but then I have no reason to believe that they are going to be safe because at any time that people can get buns or get missing.