I bought a Jamis Gentry, a mountain/city bike with street tread Panaracer radial tires, in 1985. Radials didn't catch on.
Anyway, if you are old and decrepit, you obviously need to look for a recumbent bike..............or a hybrid.
Forget the front suspension fork unless you'll be on godawful rough roads. 700x32-35 seems to be a good compromise between comfort and efficiency in tires.
Welcome aboard and have fun.