Hi docs, would my family get athlete foot from me if they stepped on the area i walked before?

Possible: Fungus (athlete's foot) does really well in dark moist areas. Hence bath tubs and showers are great mode of transferring the infection to family and friends. I suggest you use bleach bath tub cleaners after you use the shower, and please see a podiatrist and have them take care of your athlete's feet. You many need more than over the counter creams.