I think you’re missing the fact that the bosses of the establishment aren’t paying their employees fair wages and thats the only reason the tip is needed. Im not paying 25% for shit service. Tips are a GRATUITY for doing a good job and equate to a BONUS. They are not, nor were they ever, a defacto part of someone’s earnings.
You don’t work for tips. You work for a wage. And yes I worked years in the service industry and still have many friends in it.