If for instance, a meal costs around $25 today, then they would have to increase the price to $37 (or a $12 increase). Looking at one regular dish I get at a chain restaurant, I've seen its price increase from $23 to $32 in in the last year. I still eat there about as frequently as I used to. Would I still get it if it was $34.50 assuming the same labor cost? I most likely still would.
On the other hand, if the restaurant decides not to increase pay and has trouble with staffing, along with increase wait times, errors in fulfilling the order, food not prepared well, then I most likely won't eat there as often, if at all.
[1] https://www.lightspeedhq.com/blog/labor-cost-guidelines-rest...
How many of those customers would switch to eating at home? If a single restaurant changed their prices like that, then they would certainly lose business, but if every restaurant in the area did it, then people would have to collectively change their eating habits. My guess is a lot of them may not.
Plus, the 50% increase doesn't happen all at once. It happens over a longer period of time, meaning that prices will gradually increase. That gradual increase won't drive customers away as much as a sudden price increase should.
The biggest cost for small restaurants is rent. During COVID all of their dine-in traffic disappeared. At the same time, they got zero breaks on their rent so they ended up paying out the nose and getting nothing for their money. They could’ve handled the same orders operating out of a cheap ghost kitchen in some warehouse district.
Even outside of the black swan that was COVID, running a restaurant is skating on thin ice. Most don’t make it and those who do tend to be high-end restaurants with longstanding wealthy clientele. These fancy places haven’t had any trouble at all hiring servers because the tips are very generous. But for mom and pop taco shop? That’s a tough one!
Compare this to food you buy in the grocery store - you still need to buy food, even if food prices double overnight. You may buy less of it and pick cheaper brands, but your fundamental consumption habits will not change much.
Some industries are labor intensive. If labor prices exceed a certain level, these business go under. It's not some shill for businesses. It's happened to entire industries.
There needs to be some happy balance between affordable prices and affordable labor.