And what, in the behavior of businesses over the past few decades, leads you to believe they wouldn't just laugh at them and tell them they should be happy for whatever they get?
What leads you to believe a critical mass of businesses in the industries that expect tips would ever, within the current culture and legal regime, decide to compete for high-quality employees by paying them more, rather than just firing everyone who complains, and then bitching and moaning that "no one wants to work" when the applicants for the positions become fewer and lower-quality?
What leads you to believe that a bottom-up approach to this will have any effect, without a genuine change in the culture to declare tipping and the concomitant lower base pay for tipped workers unacceptable, rather than a top-down effort that actually changes the laws and regulations around it?
CBC's Marketplace did some investigating [1], and found that in many cases, the owner or manager pocket part or all of the service tip, even in provinces where this is not legal.
[1 – video] https://www.youtube.com/watch?v=LF0zJIRe1J8
[1 - text article] https://www.cbc.ca/news/marketplace/tipping-marketplace-1.73...
https://www.youtube.com/watch?v=utksPm6KgjU
The canonical commentary by Tarantino, from Reservoir Dogs.