Tipping in Cancun & Playa del Carmen is crazy

I just visited Cancun and now I am in PDC, and tipping culture seems crazy. I am not from the US and in Europe the tip is usually 5% if the service is good or round off to increase a few euros.

In Cancun and PDC restaurants I am already paying 50€ per meal for two which is same to European prices but they come up with random excuses such as we cannot accept below 10% on machine and if i pay 7-8% round off they start making faces. At two places they rejected the tip and I happily took it back.

I don’t know how they got so bad in expecting tips and not being grateful for what receiving. I strongly think if you ask me for tip at a restaurant accept whatever you get, that’s what I can afford or don’t beg for tips and then become rude if it’s not upto your standard.

I am not sure if this is the standard tipping culture in Mexico or just spoilt in this area of cancun, PdC?