[cdtwoaway]

As a young adult, I studied in a country (had a flatshare there) and took the train (2hrs) at the weekend and during the holidays to stay with my parents. I guess lots of people close to borders know family situations like that (parents, partners).

Now, I have a job with 90% business travel between two countries (but same cities). Have small apartments in both. It is just more economical and comfortable that hotel room living.

There are also often reasons not to completely move to a country, even if it's close (different tax situation, having to switch social security systems which affects your retirement, wanting to stay inside a certain social security systems which requires a place of residence..)