I would say the Mauritian mentality has improved a lot, it all comes down to where you live though.
I was once in a gas station in a village and decided to buy a drink while my car is being fuelled, i was the only one waiting for the cashier since she was busy chatting with her colleagues anyways i was there waiting for her and then one man came from nowhere and stood right in front of me. Hello? I'm like wtf. So i told him, excuse me? I was the first one. I didn't try to be rude or anything i just said it in a polite manner.
This old creep starts talking nonsense to me in French and yeah he was a local and not to mention that even a kid can talk better french than him. He starts telling me yeah i come here everyday i was gonna let you pass first and shit like that in a rude way. His tone was just not good, i didn't say anything just because he was an old man. I just paid for my drink and went away silently.
TIP: If you are going to move to Mauritius, choose to live in a place like "Grand baie" where people are really cool.