Another question about posture.

Dear master Gudo,

What you say about sitting in full or half lotus makes sense to me
I have always sat in half lotus without trouble, maybe because I started
when I was young and flexible. When I try full lotus one knee is always
much higher than the other, because there is some abnormal curvature in my spine.
However I wonder whether insisting
on only those postures discourages people from doing meditation at all,
I think that even using a bench or a chair is better than nothing. Then
working on flexibility etc. toward sitting properly. Do you agree?

Andrew