I remember reading about how you should look at your hair color when you were a kid to inform how you should lighten it. I have this urge to go lighter—not half-assed highlights or warming up, but blonde.

Not platinum, it would be a very dirty and ashy blonde, but I am wondering if it's 1) possible and 2) worth it. My hair has VERY warm undertones so I always try to dye it in ashier shades. My son has the exact hair I did as a kid and people are always commenting on the color, so I am posting some photos of him that kind of highlight his hair, me to show the current color (brown, basically) and me as a kid.

Do you guys think I'd be crazy to attempt this?