Mexican candles probably aren't any different except they were involved in two fires the previous commenter was familiar with. Some cultures/religions use candles as part of their holiday observances.

https://www.nfpa.org/education-and-research/home-fire-safety...

Mexican kids knock over the religious candles all the time. One tragic event happened when a friend's house was engulfed in flames after a candle was knocked into the curtains and she suffocated protecting her children from the smoke, I think one child had really bad breathing problems too.