In 2020 I gave a paper wallet to a friend.
It was the seed of a wallet containing $20 in BTC. He was a computer scientist and i know he could recover it after a google search. No big deal and it was a nice gift and way to introduce a friend to bitcoin,.
It can be considered as your Bitcoin "giftcard" to your friend and people with Internet can search and learn about Bitcoin very easily. How to spend coins from a wallet or how to import a private key for accessing the coin and spend it.
Especially now with AI, asking such questions will result in very quick but helpful answers and guides from AI. Reminder for everyone is never share private key with anyone, with any tool, as it's your key, and you must be the only one have it for actually owning your coin.
Like this answer with searching on Google.
Spending Bitcoin directly with a private key means you are sweeping the funds from a legacy "paper" wallet or a standalone address into a modern, active wallet. To do this securely, you must import the private key into a trusted software wallet, then send the Bitcoin to a new, secure address.
It's a good answer to begin with and learn more after that.
[overview] Recover Bitcoin from any old storage format.
