I can understand that if there are no other men in the household that women may feel reluctant to invite a male stranger into their home, however in my experience you are getting someone who is:
-very grateful to be invited into your home and will behave with impeccable manners and be eager to fit in with your life and routines
-keen to help in any way they can: putting out the bins, helping you hang the washing, popping to the shops when you run out of milk, cooking a meal from their country etc

In short, rather than having an intrusion or disruption in your life you will meet an interesting person who will enhance your understanding of the world.

S, Host, London