Why do christians ever convert to islam?

[Brakeman]

Islam set rules to apply rules to similar positions/issues
Insurance is like Gambling
You put a $100 and you man get $100,000 or nothing
the event to select the winner is just different
Sickness, dice, a No. there is no difference
Same for car insurance and others
If you are a rich person and you made an accident with your car, why anybody should pay to fix it???

I disagree with your reasoning. Insurance is a pay in pool where those in need take out. You are a winner in both outcome positions, you win when you stay healthy and accident free and you win when you have money to pay for medical care or car repairs. Thusly you are not gambling in any sense because there is not a losing position.

Conversely, for the sour pusses, you lose on both positions as well, without accidents or sickness, you lose your money. With an accident or sickness, you lose your health or integrity of a possession. Again not a gamble.

With your thinking, buying a first aid kit is a gamble. If you don't use it you lose, if you cut a finger off, you win. A strange gamble indeed..