Thanks for comments. I have very little patience which is one of the reasons I build miniatures - I don't have to spend years or even months on them. Another reason is that they are small & don't cost too much to build & take up very little room. My wife helps by painting the seas, a job that I have never really appreciated! Well over 90% of them are sold, otherwise the house would fill up. Eyesight. I am now aged 63 with eyesight consistent with that age. Model building with normal reading glasses - no other magnification necesssary. If you can read & see a full stop or comma, there is no reason why you can't build a miniature!
I often hear people say "I could never do that!" I always answer, "That is half the battle - the half that is lost, so you may as well give up right now!" When I first saw a miniature shipmodel in 1968 I thought "I wonder how on earth he did that, but I am going to find out & start building them myself.!" I immediately found miniatures a lot easier than the big ones that I once built and never really looked back. Really, it all depends on whether you want to - or not!
I have neither the time, inclination, or patience to ever return to big models !
Regards
Bob