Using "an" with education

Because sometimes education can be used, often humorously, to refer to an interesting experience that teaches you something, e.g. Tonight's piano recital was quite an education for my friends.

'Education' is a variable noun. This means it is both a countable and uncountable noun, depending on context.

I don't agree with that reason because you can also say something like, "People often travel to foreign countries to get an education."

postmodernblissthanks in advance for whomever

'To' is the natural preposition. 'Whomever' is not natural there' . Use 'whoever' or 'anyone who'.

EnglishmavenI don't agree with that reason because you can also say something like, "People often travel to foreign countries to get an education."

Neither do I.

Oh well, I was thinking about quite an education when I read the question hence my note about it being used humorously. That is of course not the only reason or usage of an education. Englishmaven gave a spot-on example of education being used as a countable noun, which is normally in the singular and never plural.

Thank you so much.