We didn't go to fast food restaurants when I was a kid. As a teen witch, I became a bit fixated on acquiring salt packets, but since my family didn't eat out, there weren't many opportunities to pick some up. By the time I was earning my own money and could choose to eat out, I was a vegetarian... this was before most major fast food restaurants had a veggie option on their menu.
The books I was reading as a teen Pagan recommended carrying a portable ritual or magic kit with you. Since salt is so useful to Pagans--cleansing, protection, earth symbolism--magic-to-go supply lists would always include salt, often with the note that fast food restaurant packets are convenient and light weight.
In these books, carrying magic supplies with you was treated like carrying CPR supplies in your purse, or a fire extinguisher in your car, or a Naloxone kit if you are likely to encounter people who overdose. It was a responsible thing to do.
When I was a baby Pagan, some part of me imagined that one day I would encounter some sort of spiritual or supernatural crisis that would require emergency magical intervention. I didn't really believe it: it was a fantasy; an excuse to imagine myself as the hero because I was the only person ready for this kind of crisis... the only person equipped with salt and the secret of how to use it. A lot of new magic users have this type of fantasy, I think. Certainly, I've run across a lot of hints of it in the Pagan community.
I had been listening to a podcast about the QAnon cult, and when a handful of salt packets arrived in my dinner delivery, it made me think of how, when I was fifteen, sixteen, I would have found some of the QAnon stuff, especially the "save the children" part, appealing: the idea that marching with a sign and knowing the right incantations to chant would magically change the world. It would be a chance to be a hero, after all, at no personal risk and with no difficult changes or sacrifices needed. And if it wasn't distracting from real problems, if it wasn't causing real life harm, if it wasn't consuming resources needed for real crises, it would be no worse than carrying a packet of salt in case an emergency space cleansing was suddenly needed. It doesn't surprise me that some people take QAnon to the next level: a sort of live action role playing game made real for them. I've seen this in our community too, once in a while.
Luckily, most of us realize eventually that if there's a crisis, magic is not what is going to be needed on the fly--we will need first aid knowledge, bystander intervention or conflict de-escalation skills, and the ability to stay calm in a crisis. A CPR mask, protective medical gloves, and a cell phone are all more important than a packet of salt in dealing with real life problems.