Changing the email thats connected to the account

I no longer have access to my current email connected to my account making me unstable to access my Pokémon account...I tried to find a way to change the email but theres no option. I think you should input an option for those that need to change it..as long as they know their email and password then they should be able to change the connected email ?

Goalie14839503372 about Pokémon GO, v1.33.1