It depends on your definition of "better". It would definitely be a lot different. We would have found a way to identify one another via clothing, bracelets, tracking chips, etc. There's no way a society would exist where one person could commit a crime and everyone would be blamed for it. For that matter, if there were no way to identify one another, very few would commit crimes out of fear of committing them on someone they know, a police officer, etc.
As for girls giving everyone a chance, this is far from the truth. In a society where physical attraction is not the defining factor, money and social status would be. Therefore, girls would go for the guys with more resources despite them all looking the same.
It's also worth noting that many girls do not discriminate based on looks. You could be a good-looking guy and have no girls interested in you, if you're considered a "loser". Conversely, you could be an ugly guy with a lot going and still have a girlfriend. If you don't believe me, go outside.
Would the world be better if we all looked the same ?
Unlikely due to the possible of false imprisonment and in regards to dating and guys getting chances which seems to be your main reason for this sameness there would still be guys that don't get a chance due to their personality wealth, or status.
"so girls would start giving everyone chances and not just good looking guys"
Egh considering that many unattractive and average guys are having sex, dating, in relationships, and married it's quite off to state that gals are just giving good looking guys chances. Bit amusing to me how guys often whine about getting chances as if guys generally go around approaching gals they find unattractive instead of approaching the ones they find attractive. More amusing how often guys think just because gals aren't giving him chances it means gals don't give 'insert whatever type' guys chances.
2) Imagine you walked in and saw your girlfriend and had sex with her only to later find out that it was someone else. It would be like having sex with yourself, your parents, your boss, etc.
3) No one could possibly look the same because locations count into factor. If you lived in a tropical country, you'd tan and you would be brown and then there's the whole color differentiation taking into factor again.
4) We need diversity to survive. It's what makes the human race different.
5) It would get monotonous. People would lose interest in each other since they all look the same.
6) People would still find something or someone to hate.
No, because then everyone would get boring and it would make it harder to choose. For example, if you have two guys that look the same and have similar personalities... which one would you date?
I've dated the "unpopular guy" before and let me tell you, he treated me like a princess. Yes, I have to be attracted to a guy physically for us to date, but it's personality and how he treats me that is the real thing that I look at. That and if he can make me laugh.
No, it wouldn't... Not all girls like typically good looking guys.. All my friends think people I go out with are pretty unattractive apparently.. I disagree with them, what makes guys good looking in my opinion is a guy's flaws!:)
Probably not, people would just find something else to pick on to date certain people as opposed to others... Plus unless there are exactly the same number of males and females someone will most likely still go unhappy.
If we all looked the same, every individual would do what they can to make themselves look different from the rest, be it fashion, hair styles, or body modifications. This is because humans are unique individuals and no two people are exactly the same.