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 wedding ( church_id number, male_id number, female_id number, year number )
TABLE: CREATE TABLE church ( church_id number, name text, organized_by text, open_date number, continuation_of text )
TABLE: CREATE TABLE people ( people_id number, name text, country text, is_male text, age number )

### Question ###
Show the name and country for all people whose age is smaller than the average.

### Accurate SQL ###

SELECT name, country FROM people WHERE age < (SELECT AVG(age) FROM people)