This as-told-to interview is based on a conversation with Linda Barton, 55, who lives in Texas with her husband and works in criminal justice for the courts. They moved their three living parents into tiny homes in their yard to afford their care and manage their full-time work schedules. This interview has been edited for length and clarity.

I was clueless and in my 40s when this journey began. I think most people are like me. I’m always throwing out ideas to people to help them navigate these years of their lives.

My parents were older when they had me, and I’m 18 and 16 years younger than my older brothers, both of whom died by the time I…