- Language will be a problem. Speaking more than 1 language will help. - Access to public bathroom is going to be another - like even public bathroom in place

- Language will be a problem. Speaking more than 1 language will help. - Access to public bathroom is going to be another - like even public bathroom in place like Walmart-equivalent cannot be assumed to be generally available. - Legality and Cultural acceptance is going to vary country by country. In my home country, a single man living in his van will be reported to the police the second nights he stays in the same place, and he will be asked to move somewhere else at the very least. - You pointed out to a gym being available across Europe, but the replacement, swimming pools are not anywhere as available as gyms. There is no public toilet at the public library that is next to my place. Public shower are often restricted to professional drivers and I haven't seen one outside of the highway or trucking road. - Insuring your car requires to have a physical residence in a country, and you generally can't legally be more than a few months in a country with foreign registration. Similarly depending on the age of your car, your country may require a yearly car check which mean you need to be around there at that time. - Internet access - you will need to prepare that a bit more carefully. - What about taxes ? That's another thing you have to know when crossing several countries. - Stupid little things like currencies. So going across Europe is going to be more adventurous than in a country that has road-trip in its DNA, and depending on the country, even staying in a single one is going to be more adventurous. Of course it's all relative, that is harder than in the US, but nowhere as hard as for Syrian refugee in Turkey.