To each his own. For convenience you could just extract brew. Some of us are in it for end results; the joy and pleasure, and want to recreate traditional old style brewing methods. I have done extract brews, brew in a bag, all grain single infusions , multiple temperature steps, additional corn mash steps, and multipile decoction steps. You kind of progress to advanced methods once you taste the superior results. I used to race through the brew day, trying to finish as fast as possible. Then I realized I loved brewing and now take my time enjoying every moment, tunes on and enjoying a homebrew while brewing. Extra time and steps are worth it to some. Wheat beer is not the same without decoction mashing, but yes it can be done with simple infusion mashing. CHEERS