Hijab is not disturbing the discipline in any way. 

When a small mask can save from the pandemic ,Hijab can save from different  social evils like dating, rape, suicides due to failure in love affairs etc.

If  forced to attend the colleges without Hijab, many of the parents may stop sending the girls to the educational institutes. This will lead to deprivation of education in the Indian society. This will hinder the prosperity of our country.

On one side valentine day celebration is condemned and on another side wearing Hijab is being discouraged .If one want to discourage social evils they should encourage Hijab.Its not only for Muslim girls but girls of other religion and caste can also wear it as to safeguard  women's modesty.

It has got health benefits too.It will prevent the hair and scalp from pollution and prevent hair loss, and dandruff like issues.

Condemning a thing keeping in mind a particular group / religion must not be encouraged.It is against the fundamental rights.

Live and let people live at their own comforts.This is to be encouraged.

If Hijab is disturbing the discipline  or causing and health issues or disturbing anyone in anyways then one can discourage it.

When a thing has social benefits , health benefit and promotes prosperity of country, then such a thing must not be condemned.