It certainly is a good idea! I presume there will be a room in each college and school where girls can just go and pick them up and if they are free for everyone, no embarrassment. Food banks accept sanitary products as donations too but that's a different matter.
Littleroses, all contraception is freely available. I wondered where people could pick up free condoms so I googled:-
most GP surgeries – talk to your GP or practice nurse.
community contraceptive clinics.
some genitourinary medicine (GUM) clinics.
sexual health clinics – these offer contraceptive and STI testing services.
some young people's services.
Not that straightforward so hardly surprising they are on sale everywhere and people do buy them with their shopping rather than making a trip to one of the above.