I don’t like to be bothered with putting on/taking off single lens glasses so I chose Progressive bi-focals. I never had any problems getting used to them. I’ve read progresive lenses are more difficult to get used to but I found lined bi-focals much more difficult. Glass lenses have better optics but they are heavier and fewer labs make them. There are high quality polycarbonate lenses which are very light weight and are high impact. I haven’t broken a pair yet and I’ve sat on them stepped on them and dropped them on every imaginable surface and although they did scratch they never broke although the optics arent as clear but most people probably don’t even notice the difference.
I settled for polycarbonate only because I chose framless frames.