I cringe whenever I see an 18-19 year old with a old granny/grandpa (70+). It's inappropriate and they are your granddaughter or grandson's age. I've been crushed on by a 90 year old man when 30 years old so yeah. Creepy and predatory.
It's weird for someone who's 70+ years old to be looking for relationship with one who is in just 18 years range. I would regard such old man as a pervert.
