Yes, I do know how it is. My cofounder has a 7 year old, and I have a 6 year old and a 4 month old. Luckily for us as well, we have a great support network, and amazing spouses who are super supportive as well. I think if anyone wants us to get YC as bad as we do, it would be my husband :) I think it's easier for us to drop everything for our start up than for him because it's "our" project, you know? Did you apply to yc this session anyway? I'll chat with my girl and maybe we can send you an email monday!