Name the glue - 'all purpose glue' is far too vague.
you remove dried glue from fabric by using a solvent based cleaner such as
111 trichlorethelene or acetone (nail polish remover) another good choice is d'limonene
You can use 90% alcohol
Hot water and dish soap
acetone nail varnish remover
Try rubbing with an ice cube, then picking it off
Use Whitlam's Glue Wash hand cleaner. It removes all glue products from skin. Available at good plumbing stores.
Yes, but it may not achieve much.
The only chemical that dissolves it does more damage than the glue.
Most glues that are sold also has a solvent, check where you bought the glue and see if there is a solvent. Also you can try salt, olive oil, shampoo, and club soda mixed on the glue......let it sit for about 10 minutes then rinse out. Do this a couple of times to remove the stain.
Yes, use epoxy.
Yes, hot glue will work on synthetic clothing and leather jackets.
Most household glues, like Elmer's glue, are not toxic.
That is a very vague question and almost impossible to answer. It's necessary to know WHAT glue and on WHICH material. I wouldn't the same remover universally. If i get ABS yellow glue on a cotton blend shirt, i remove it with Whitlam's Glue wash - This will not work for most other things. If I get white glue on a T-shirt, hot soapy water often works.- You need to re-write and specify glue and material.