My sisters three children, now young adults, are all away from home. The eldest os a trainee teacher, having done two degrees at university. The second girl is training to be a paediatric nurse and the son just away working for a couple of weeks.
They are all missed. Both the girls call regularly, the son rarely!
The fact is that all three are very close to their parents and the girls call nearly every day.
The hardest thing is to let them fly but, with good groundwork they return to the nest!
I will say that I left home and moved away but, my parents were always 'home' I never said "I'm going back to my parents for a holiday." It was always "I am going home."