Pressure from parents about Covid V

My parents are very very pro Covid vax. I respect it, that’s their decision! My husband and I are also vaccinated so I have no issues with it, I think it’s everyone’s personal choice. However we decided not to give it to our children (they are fully vaxxed otherwise). My dad however keeps pressuring me to vaccinate my kids. Every time I call them he is like “why won’t you give it to them?” and tries to guilt trip me about it. As a family, we’ve already had Covid twice now and my kids were fine both times, like most kids are! It’s a more mild disease in kids and we just don’t feel comfortable giving them a vaccine that has not been thoroughly studied in children. 🤷🏽‍♀️ Is anyone else in this boat and being pressured to give this vaccine to your children? How do you deal?