The only folks that I know that brew in the kitchen are the ones that don't have a turkey frier, no balcony for their apartment, or just know any different.
As for Partial Mashing, this is the process that gets the brewer one step closer to All Grain brewing because instead of just steeping the specialty grains, the brewer gets to mash the specialty malts with a portion of the 2-row. Most homebrewers just don't have the equipment to graduate to All Grain brewing but all extract brewers have the equipment to Partial Mash.