If your gut feeling is no, then no.
Ive been flamed before for leaving mine.
My 10 year old used to take 5 year old to school (we would get the bus together, children get off and walk 5 minutes to school) i would stay on and go to work.
I initially left them home alone at about 12 and 7 years old, when the sitter did not show (had key etc)
I got home from work and they had been home alone, fine.
Circumstances now changed, children older, different schools.
My youngest is now 10, and does not go to school alone as not mature enough.
I dont think people get it, until they are alone, alone, alone.
No family, resources or friends who can step in, no government support, and having to provide.
On a personal level, I wish you all the very best.