Lifestyle tips

I am planning a trip within Europe (from Sweden to France, specifically). I'm definitely large enough by now that I'll need to buy two seats. Air France seems to have the best policy for that, but since there's a connecting flight, I'm wondering how feasible that is? If the first one is delayed or something happens to the second one, I fear I might not get my two seats next to eachother, thereby making the purchase useless. Is this an actual risk?

Further, I was planning to go for an Airbnb so that I have access to a kitchen. Furniture belonging to my friends can usually hold me, but I have to be very careful with it, more careful than I'd want to be in a place where I'm staying for several days (I don't mind being hypervigilant about the furniture for a while but not for days on end). Is it reasonable to imagine the average Airbnb host in France is able to accomodate a man just shy of 400 lbs?

Call a travel agent. They can answer your questions and advise you on the best course of action. You can also phone them during your trip with any problems that arise.

Restroom and shower doors are something you might want to inquire. I know someone who is only about 250-300 pounds and had struggles with them in Europe. She managed, but it was a tight fit.