In many countries, toilet paper is meant to be flushed or people are used to a bidet. For a man, this could mean pretty much no reason to have a trash can near the toilet.
But if you plan on having people over, specially women as a date, have a little trash can with a plastic bag and a lid near your toilet. That’s where your guest might dispose of a tampon, pad, cotton swabs, condom packaging, and similar items.
Make sure you have some toilet paper available even if you prefer a bidet, too - there are many times it could come in handy, and people might be shy to request it after using the toilet and realizing its not there.
I find that having a trash can in the bathroom is useful for everyone, at least for me personally. I tend to accumulate empty bottles of shampoo/body wash if I don’t react to it immediately, so having a trash can nearby can expedite that process. Also useful for things like floss picks, razor containers (don’t throw straight razors down to the trash can), and many more.