1 million not enough to retire on?

I'm sick of hearing people say this. My mom retired 17 years ago with 90k in savings. The last time we went over her finances she had about 110k. She doesn't exactly live the type of retirement I would want. She doesn't like to travel and she really doesn't have any hobbies. But she lives a quite comfortable life and has her city pension. She has all her family around. She always picks up the tab on occasions and she has all her family and friends around. Personally I would like to do a little more in my retirement but my point is if you aren't an idiot with your money you don't need Millions to retire.