It is never too late in life to practice yoga
The battle of yoga is with the body and with the ego. You must conquer your ego, or small self, so that you can let your soul, your big Self, be victorious.
From Freedom of the Body comes Freedom of the Mind and then Ultimate Freedom!
The commercialism may wash off sometime later.
When I stretch, I stretch in such a way that my awareness moves, and a gate of awareness finally opens.
As a mighty river which when properly harnessed by dams and canals, creates a vast reservoir of water, prevents famine and provides abundant power for industry; so also the mind, when controlled, provides a reservoir of peace and generates abundant energy for the human uplift.