The mode of storing your crypto assets depends on; the size of your assets, your personal security choices and your environment.
The size of your assets will determine which form of storage or safe keeping will be used. As it's been said by earlier posters, if you posses a little amount of crypto you don't need a cold wallet for storage, cause to use the cold wallet, you'll need to purchase it from the company officially, either through their official website or their office.
In personal security choices, this depends on the individual. Do you have a particular device only for storage of your assets or the one you use for trading or hunting is what you also use for storage. I found out from some crypto enthusiasts that they have separate device for storage, and nothing else is done with that device, except when they want to check the value of their assets or make some transactions from it.
The environment matters if it is filled with lots of crypto users or none crypto users.
Those who knows about crypto, knows the value of some any security related to crypto and will make use of any wrong slight move. But when you have crypto noobs, they don't know what's valuable or not.