English idiom of the day:

old school:

old-fashioned (but still relevant)

to be old school:

1) to do things in an old-fashioned way

2) to have conservative beliefs

Example 1:

You keep your self-driving cars and electric charging stations: I keep things old school with my 1976 Cadillac Eldorado.

Example 2:

Dress formal when you come round for dinner, my dad is old school when it comes to my boyfriends.