Oh, but they do, especially in audio.
Oh Lord. Only in "boutique amps." Ridiculous people who argue over how many angels they can hear dancing on the head of a pin called "Audiophiles" do!
Don't get me started!
I use tubes in antique AM radios where they belong.
And, people use a tube (magnetron) in their microwave ovens.
But actually, these exceptions prove the rule!
Parents who would skip latin or greek would skip over the basics of tube technology too....while heating up a slice of pizza (greek etymology?) for their darling in the microwave with a vacuum tube!!
Not all teachers are bad. Not all government schools are bad. Not all parents are good, and not all good parents are good teachers. So all homeschooling might not be all good!