My son also has an interest in being a teacher, like his mum.
I pointed out to him that after completing a bachelor's degree in aviation, down the track he could do a year of study for a Dip Education to become a teacher. Handy backup if he ever loses his medical or gets caught in an aviation industry downturn.
A similar year of graduate study would get him into Accounting, IT, Banking etc.
In the long term, pilots in airlines will need the analytical and literacy skills of a degree to move into management. Wise long term investment.
I'm a weekend private pilot with no flight school affiliations. Happy to give my personal details to anyone who wants to verify this.