Pooling tips means that those who earn them lose some of what they earn so that those who didn’t earn them can gain what they didn’t earn.
I WILL ask if they pool or not, not that that means anything to me other than I disagree with pooling.
I had one Chinese girl publicly hug me (in front of my wife) almost in tears when I demanded she put $5.00 in her pocket.
My oldest daughter was a high end waitress, (in her undergraduate days,) and was always one of, if not the highest earner. Her secret?, tip out the kitchen staff and busboys. Her orders and tables always came first, thus much higher tips. Her competition was always to selfish and cheap.
Socialism
What it usually means is that the bussing and kitchen staff, who do as much as the wait staff to produce the dining experience, get some of the tip money too.