Has it shaped your choice of whether or not to offer magic links (one time passwords) as opposed to password authentication?
Would you offer magic links as part of a service that is mainly targeted at ages 50 and over?
In 2002 I went to a school near Norwich NY which trained our draft horse and trained me to drive and in the mornings we met at a cafe which always had a table full of old ladies who were talking about Netscape, AOL, whatever. People like that were really into the internet BACK THEN!