Tips are legalized begging.
Accepting a job where your pay is partially based on tips, effectively makes you a beggar.
Offering a job where wages are partially based on tips, means you accept begging as part of your business model.

Edit:
To those who disagree, take a look at that picture again, and explain to me how that isn’t begging for more?

Plastic is very durable, will it make my brain last longer?
Also plasticity of the brain is a crucial function, if it benefits the plasticity that would be great too.

/s

“Will allow” is absolutely irrelevant, if it’s in the environment there is no way to control it individually.