Back Story:
My mum offered to look after my son, 1 day a week so I could go back to work part time. he does 2 full days at nursery also.
We are basically having a bit of a fall out recently because they've bought a lodge and want to go on holiday in half terms because my older brother is still at high school. This is fine but she want me to use my holidays which I only get around 12 in a year. I personally don't think this is fair as if they go up for 2/3 in summer and 2 half terms during the year that's potentially 5 holidays, ill have to use for her to go on holiday. Am I being unreasonable because she helps me out so I can work a day with free childcare?