Yet, in fact you and the bicycle are physically leaning throughout any turn. I.e., you are at an angle off vertical with your center of mass distinctly not directly above the line between the points where the tires contact the ground.
Normally the plane of the bike, normal to the axles, cuts right through your center of mass.
Starting a turn by leaning is not usual for experienced bikers, but certainly works. For a beginner, staying upright while going more or less straight is what they need to work out first, but that invariably involves some spontaneous turns, so both are practiced.
What a century of children have been told is to steer with the handlebars, which is a reliable recipe for spills.
Normally the plane of the bike, normal to the axles, cuts right through your center of mass.
Starting a turn by leaning is not usual for experienced bikers, but certainly works. For a beginner, staying upright while going more or less straight is what they need to work out first, but that invariably involves some spontaneous turns, so both are practiced.
What a century of children have been told is to steer with the handlebars, which is a reliable recipe for spills.