Like pps say they're entitled to have their feelings about what they are capable of, or what they like doing or not.
What is under your control is the ability to say no, or deflect them, or stop problem-solving for them.
Or just avoid them if it's too much for you! You're allowed to have boundaries too.
I agree I don't think it's an age or gender thing. All people can be timewasters.
However, I do think that sexism means people feel women's time is free or women are "easier" to ask (amplify if young or non-white).
You'll see people refusing to waste the Big Important Tall Mans time with a small question, but they'll be happy to ask the woman.
(I was reading a textbook for a final exam in my local green space, and some cute little kiddies asked if I could help them with some video project... obviously requiring I step out of something I was clearly involved in.
There were LOADS of other people there.
I was brief and polite when I turned them down, but of course "Go ask the nice lady as she is less likely to be nasty so you can waste her time" is a common trope)
A lot of people will ignore a woman if she says something or requires respectful attention, but she'll suddenly become "visible" when there's a shit menial task to do. There's ways to push back on this.
I've noticed at current work, weird men like wasting my time with nonsense requests so they can feel important as they've made me go out of my way for them.
It's not about the question itself, it's just a dominance or control thing.
Since I started WFH more, I ignore emails that aren't critical, no-one cares, if they did I'd plead ignorance - life is peaceful ;-)
If they get too annoying or a drain, I would just detach.