Lol I'm sorry, but the way the details of this question are worded, it kinda sounds like you have a fetish for granny panties! :x
I wear them, they're called my "period panties". Basically, only when I'm menstruating or if it's laundry day. I wore them one time with my ex, just to fuck with him. But he said he didn't care cuz they were coming off anyways haha.
I had to wear adult diaper in the hospital when I kept having my brain bleed -_- shitting myself is NOT something I miss from early childhood. But other than that, nah I haven't really worn granny nothin's.