Yes, but only if the house they bought came with one. If they have to build a porch later, it can be expensive, especially if it's a front porch. Front porches are usually more elaborate than a back porch. The exception would be a back porch that is connected to a deck. Those can be very costly.
The plural for porch is porches.More than one porch=porches
New porches should be simple tiled, slate or thatched open porches to suit the style of the house.
Germany.
?
Doctors are unlikely to do free rhinoplasty. .
They are doctors who do the work of doctors for free or for charity or missionary work.
porches
Porches
A. J. Harmon has written: 'Porches & terraces' -- subject(s): Decks (Architecture, Domestic), Porches
Yes
usually on porches in Africa
Not in the US