Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE PersonFriend (name VARCHAR, friend VARCHAR)
TABLE: CREATE TABLE Person (age INTEGER, name VARCHAR)

### Question ###
Which person whose friends have the oldest average age?

### Accurate SQL ###

SELECT T2.name, AVG(T1.age) FROM Person AS T1 JOIN PersonFriend AS T2 ON T1.name = T2.friend GROUP BY T2.name ORDER BY AVG(T1.age) DESC LIMIT 1