Jim, did you really think this lady didn't know she can earn money by working? Also, the sarcasm of "Of course you will have to actually expend some energy to go out and find a job", isn't likely to be well received or helpful. I wonder, since you don't seem to have anything nice to say, why you posted in the topic. Would you give the same advice to an 80 year old? A 90 year old? Knowing nothing about the persons health, work experience, and mental state?
Sitting here, I don't know where this lady is. I don't know her history and how she became homeless. I don't know her budget, her circumstances (married, single, widowed, children or not). With so much missing information, I'm not sure stating the obvious in this way is very useful. And for the record, I don't need to know any of that stuff, and there's no reason she should be compelled to explain. Sometimes a little empathy goes a long way.
I'm not meaning to attack you in any way, and certainly don't want to start a back and forth, but I hope you can appreciate how your advice may be received. The lady has clearly been through some kind of trauma (losing her home), so let's at least be kind.