As you can see 28-29 years is becoming new normal for marriage.
Perhaps thinking of boy{?} being younger than girl at that age does not carry much sense.
Both should be mature enough to understand it cannot be romance as for the young.
Both would look for their own space to pursue their career , hobbies and interests in addition to sharing things together.
They would have separate finances in addition to some common account for joint expenses.
How these manage their money gets interesting.
It is my thing and our thing for all material possessions.
They jointly and severally fulfill their goals and responsibilities in life.
They probably give each other space to do their own things also.
They could be happier than normal young couple who fight over money after pooling it in a fit of romantic emotion after marriage.
Perhaps thinking of boy{?} being younger than girl at that age does not carry much sense.
Both should be mature enough to understand it cannot be romance as for the young.
Both would look for their own space to pursue their career , hobbies and interests in addition to sharing things together.
They would have separate finances in addition to some common account for joint expenses.
How these manage their money gets interesting.
It is my thing and our thing for all material possessions.
They jointly and severally fulfill their goals and responsibilities in life.
They probably give each other space to do their own things also.
They could be happier than normal young couple who fight over money after pooling it in a fit of romantic emotion after marriage.