The man is right to try to make modern sanitary protection available to all women, BUT in the UK VAT is still applied to sanitary towels and tampons.
Yes, the rate applied has gone down to 5% (the same as "essentials" such as gas & electricity etc) where it was previously a shocking 17.5%, the same as "luxury" goods, but did you know that mens razor blades are tax exempt? And even so, there have been questions raised in parliament recently with regard to how expensive razor blades are getting!?
The average women will need some form of menstruation related sanitary items for around 40 years of her life, and that is a conservative estimate as girls are reaching puberty quite a bit earlier these days.
Men can choose to shave or not, women can't opt out from having periods. Even at the lower rate, HMRC is still making money out of women!