Dropshipping sounds good to everyone I guess?
Not everyone, just a newbie and a homeless guy.
Dropshipping is not a piece of cake, it's not easy, and it takes time. Finding suppliers that are reliable is a bitch.
Besides, is you mother interested in dropshipping? Do you know enough to teach her, or are you just going to build a dropshipping empire, hand it to her and say "here you go"?
Have you sat down with your other and asked what interests her? Is there a hobby or a passion she has that she would like to delve into?
Does she like doing graphics? Does she have a good eye for fashion? Does she garden? Does she like to hunt kangaroos from a hot air balloon with crossbows?
You think I am being facetious, but I am not. If you Mother is an analytical person, maybe a PPC empire will work for her, but if she is creative, it will drive her nuts.
If she likes hunting from hang gliders with crossbows, making a hunting from hot air balloons site with machine guns is a waste of time.
Find out from her the things that she is interested in. Then find a way to incorporate that into the online world. Otherwise you are just going to give her a job she hates but can't abandon because her loving son/daughter gave it to her and she doesn't want to disappoint you.
You want to give her a gift, not a burden.