To say you are confused would be a under-statement.
Read the law.
Also, there is a difference between being a “Citizen”, and a “Natural-Born Citizen”.
Do you know the difference?
Yes, a “natural born” citizen is a citizen who was born in the country, or who has had “natural born” granted by law even though they were not born in this country.
I suggest that everybody read the law, so they don’t keep getting confused as to what the issue is. IF you read the law, you would know that it makes no difference what age his mother was if Obama was born in Hawaii, because the section of the law regarding the age of the parents only applies if the birth is on foreign soil.