Grandparents remit tuition fees and living expenses

Hi, I am a UK resident holding BNO visa and pay UK tax. I have 2 daughters holding BNO visa, currently in UK, one of them is studying at university and the other one is looking for jobs, unemployed. My parents from Hong Kong remits money into my university daughter's bank account in Hong Kong for fees and living expenses monthly, she then will exchange GBP and remit to UK bank account, she sums up all money to pay tuition fees and living herself. For another daughter, I will remit money on monthly basis, for her living expenses as well. 1. Do my daughters need to report their income to HMRC? 2. If money in bank generates interest but not exceeding the limit of allowances, do they need to report as well? 

Hi,
 

This would be seen as cash gifts and there is no tax due on this. Only the interest that it generates would be taxable and UK banks/building societies report this to HMRC . Thank you.