A question

I think it's good up to a point. Shoes offer protection. I remember last year having to pull tiny slivers of glass from the sole of my foot as I'd stepped on them whilst barefoot and not noticed

I have to say yes, to be honest, although personally I don't.😯
My boyfriend goes barefoot all the time, though, and it certainly works for him.👣😃

For me, it is necessary to wear supportive shoes or I get plantar fasciitis.

Yes. Shoes and even socks distort your feet and also provide breeding grounds for bacteria and fungi. Shoes are the reason for smelly feet.

Yes it feels natural to me

Depends on the context,
Bad = Good =

Depends where the Lego is

Yes. Unless you get a cut...