I'd like to know if anyone has experienced this, my mom is 26 weeks an…

I'd like to know if anyone has experienced this, my mom is 26 weeks and 4 days pregnant, and because of her high blood pressure they want to do a cesarean section sooner, more precisely in the near future. Is it safe for the baby and for mom? I'm very scared and worried ? Mom is also afraid and refuses a cesarean section, she says it's too early, but doctors say she has very high blood pressure ??