Performing Hajj leaving out Kids

Assalaamualaikum, My question pertains to going for Hajj when one finds himself financially stable. Alhamdulillah, i feel that i can plan my Hajj as i find myself financially stable now. However, there are a couple of concerns my way to which i wanted ro seek your guidance. I have two young daughters (2year and 6 year old respectively) and i am a salaried person by profession. So, my questions are- 1. Is it compulsory for me to perform Hajj in the current year given i am capable, even if that means leaving out my daughters with their grand parents? Or do i have a leeway to wait until they grow up? 2. I am finding difficult to get a full 30-35 day leave from my office so what should be my priority, (a) wait for the next years to get a full 30-35 days leave or (b) try to get the Hajj done in the current year but in a shorterned period (possible 10-15 days which i am more likely to get an off from office) (c) Leave the job and go to Hajj for a full 30-35 day period? JazakAllah for your time.