My mom wants to open her own gym.?

she is also looking for a job, because she says it shows stability. my mom hasnt worked for 3yrs. but she worked at her previous job for 15 years. she says having a job will make her have a better chance of getting the amount of money for the startup costs. every job that she applies to she is overqualified for the positions.i dont think she will find a job should she just start on the gym now? My dad makes enough money for her to get the money she needs for the gym but she wont start on her gym. my parents have great credit. Should she begin on the gym or not?