My elderly mom can switch pretty quickly from easygoing and fun to grouchy when I inadvertently treat her like she's not quite capable of managing her own life.

My elderly mom can switch pretty quickly from easygoing and fun to grouchy when I inadvertently treat her like she's not quite capable of managing her own life. She'll be the first to admit that it's starting to become true, but it's a fine line. I think old people become more grouchy the more young people treat them like they're old and useless, or stupid.