I've got one for your Wife of a man trying to grow his hair, so the complete opposite of your wife's problem

I always wanted longer hair. I'm a bloke nearing my 40s so there wasn't long left to actually grow it before it all falls out when Covid hit and the barbers all closed.

Now what stopped me in the past is this phase where it's too long to be neat or tidy, but too short to gather in a ponytail. But Covid was an excuse! Thing is, I hate the hair at the sides of my head, it's all curly and makes me look a right dick, so I kept the sides short with a set of Clippers, basically a growing out a short back and sides until it becomes an undercut.

That was a mistake and one I'm still paying for.

So I made my wife trim it in the first time, and she did a great job for an amateur, but it was just very slightly trimmed in too deep on one side.

This meant that as it grew I would get these short hairs on one side of my widows peak, but not the other, requiring me to retrim it every time I shaved the sides. It because the reason I shaved the sides, this bit of hair that I couldn't get into a ponytail.

Not only that, but nobody told me that an undercut is the worst of both worlds. Long hair you have to brush every day, and wash and style and all the rest. And a shaved head that looks shit when it's not shaved.

I waited until my hair was long enough that I can tie back a center parting instead of straight back, so I could hide the fact I'm growing out the sides, and I've been growing that out for a year and a bit now.

So there it is. My grown out undercut is shoulder length now and the undercut itself is just about all in the ponytail, nearly. One mistake, years to correct.