You may not be as normal as you thought! If you can't roll your tongue you are in the minority, on the other hand if you have dark hair you're in the majority and part of the norm.
Only 0.5% of the population have red hair. If you are single in the US you are part of the norm, which is a change that only came about recently. The average age to have a baby in the US is 22.8 for women and 25.4 for men.
On the other hand in Chad the averages 17.9 while in Greece the average age to have a child is 31.2. Oh yeah, if you're not right-handed you are in the minority and not considered normal - but everyone knows that.