Why people hate pizza with pineapples?
The dislike or preference for pizza with pineapples is subjective and varies from person to person. It's important to note that not everyone hates pizza with pineapples, as there are many people who enjoy the combination of sweet pineapple with savory pizza toppings. However, the sentiment against pineapple on pizza is often expressed more vocally, leading to the perception that people generally dislike it.
There are a few common reasons why some individuals express dislike for pizza with pineapples:
1. Taste preferences: Some people simply do not enjoy the combination of sweet and savory flavors in the same dish. They may find the contrasting flavors of pineapple and pizza toppings to be unappealing.
2. Culinary traditions: Pizza is deeply rooted in Italian cuisine, and traditional Italian pizzas typically consist of ingredients like tomato sauce, cheese, and various meats or vegetables. The addition of pineapple is not part of the traditional pizza recipe, so individuals who value culinary authenticity or traditional flavors may reject the idea of pineapple on pizza.
3. Texture and moisture: Pineapple contains enzymes that can break down proteins and result in a slightly softer texture when cooked. This texture contrast may not be appreciated by some individuals who prefer a specific texture profile for their pizza.
4. Cultural influences: The debate around pineapple on pizza has become somewhat of a cultural phenomenon, with strong opinions expressed from various corners of the world. This cultural influence and the ensuing discussions have perpetuated the perception that people widely dislike pineapple on pizza.
It's important to remember that taste preferences are subjective, and what one person dislikes, another may enjoy. Pizza toppings are a matter of personal preference, and there is no universally right or wrong choice. Ultimately, whether someone enjoys or dislikes pizza with pineapples is a matter of individual taste and culinary preference.
When was pizza with pineapple first created? Is it still a delicacy somewhere?
Sure! I can help answer those questions.  

Pineapple pizza is widely credited as having been first created in 1962 by Sam Panopoulos, a Greek immigrant to Canada.

While pineapple pizza began in Canada, it quickly caught on elsewhere. Although in no place is it known to be considered a delicacy, pineapple pizza can be found in America, Germany, Britain, Australia, and countless other countries, with quite a following. In fact, TIME Magazine designated pineapple pizza as one of The 13 Most Influential Pizzas of All Time. 

Most influential doesn't mean most loved, though, and the popularity of pineapple pizza varies widely around the world. Pineapple pizza lovers and pineapple pizza haters stand firmly divided, according to research, especially in America and Australia. Britain, however, may be the closest place to revering pineapple pizza as a delicacy. One survey found that it was the most widely available pizza to Britons. Nearly 4,000 pizzerias throughout the region offer pineapple as an available topping. In contrast, pineapple pizza is so controversial in Iceland, that it was nearly banned, albeit in a political stunt.

I hope this answers your curiosities about the creation date and delicacy status of pineapple pizza. Have a slice on my behalf if you get a chance!

Is there anything else you would like to know about pineapple pizza or any other topic?
What is the situation for pinapple pizza in Italy? I could imagine that the birth place of Pizza does not look so kindly on a very unusual and non-traditional topping as pinapple. Or is pinapple just not liked in general there?