duh, ofc 1.a3 is a genius opening. Im surprised you guys only justs realized this.
Anderssen Opening is actually genius?

I wonder why we dont see Carlsen ,or other GM's playing 1.a3 in OTB tournament play?
Carlsen has found an improvement to 1.a3, which he has employed in several blitz games: 1.f3!!
Rumours have it that his inspiration for playing this move was Trump.
I knew their had to be a logical explanation!
At the OP's level 1.a3 is perfectly playable.
At any level it's perfectly playable.
In blitz, bullet, and for fun? Sure why not. But their is a reason you dont see 1.a3 played at the highest levels.