I disagree. By transferring less funds, there are fewer bitcoins on the table to lose if they accidentally bork their transactions.
I'll show you an example I read years ago: Alice has 5 Bitcoin on a paper wallet, imports the private key into a wallet, and sends 1 Bitcoin to Bob. Then, Alice deletes the wallet, and stores the paper wallet, thinking there is 4 Bitcoin left.
Later, when Alice tries to make another transaction, she discovers the paper wallet is empty.
This example illustrates why it's paramount to empty a paper wallet completely, unless you know what you're doing. It depends on the wallet you're using what happens to your change, and that's not something to be left to chance.
People shouldn't have to know how coin control works or that an address can have many inputs associated with it in order to be able to send from a single address.
Unfortunately, that's not how Bitcoin works in the basics. It depends on the wallet you're using, and if the wallet is a piece of paper, you're entirely on your own.