I'm sorry but I had a very good laugh. You forget my dear, you are working with bunch of ENGINEERS!! Bunch of social nit wits, a big social ZEROS. Take it with a grain of salt. Remember what HR people have to say about engineers, bunch of socially inept people social IQ is in the single digit.

FYI, I have a big streak of grey so much so that if Pepe Le Pew was around, he might fall madly in love with me or I could be a sister or cousin of Cruela DeVille. My silver grey is so strong and such sharp contrast that coloring was not an option. You could see a strong line across the hair where it grew out. Lot of it has to do with how you feel about yourself and how you project your self. Be the confident, happy self and that is what people will see. If you project a tired and worn out person, they will see that and see an old lady.

My partner is in her 60's but routinely, she is mistaken for someone 10 years younger.

Do what makes you and your husband happy.