It is... condoms are free. Tampons are charged and taxed, and that isn't even a choice.
Yes, I think there should be some available at schools etc, for those who need them. Most won't ask, unless they really have to.
There is a choice about using sanitary towels and tampons - my wife and daughters have used mooncups for years, although I do agree with the abolition of the 5% VAT.
No, so it's good there are alternatives. My wife's GP recommended my wife try it as she had an allergy to pads and tampons which made her life utterly miserable.