Moving from house to apartment

Hello,

My dog is a 12 year old English Springer Spaniel and has lived all his life in a house with a big garden.

I have to move him to another city (by airplane) to a 60m2 apartment. I can walk him 1h30 per day total, 3 times a day.

Is this evil and insane?

I just think that he will prefer being with me as to a new owner.

Thank you!