Piston Wear

[SanTanfan]

Hello trying to get feedback about the state of my piston. It looks good no gouges and no noticable issues with performance. But I was checking things out and noticed the piston had wear on either side.. is this normal or is this a potential problem.
Thoughts?

 

[Gordy]

These engines aren't built with the best tolerances in mind. Tolerances are usually very loose on these, so piston slap is bot too uncommon.

 

[SanTanfan]

So is it ok, is this something I need to worry about, should I replace it?
Or is this just normal for any engine