Is it okay for straight males to paint their toenails?

Sure if the mood takes you

OK is a very subjective thing. There are cultural issues, peer pressures and other factors that have to be considered. When you ask if it is OK, what would make it OK for you?

Do you wish you could wear/apply any other 'feminine' things? There is a whole culture of cross-dressing, complete with man-sized high heels and dresses that fit men. They are straight. You don't say where you are in the world, but you might want to explore groups. They are straight men, many with wives and children who understand.

OMG, of course not, just joking.. LOL. Why and who cares...

If you want to do that, go for it. Now some people may judge you and assume you may not be straight, but then people see my tattoos and judge me on that. They can get a life.

If you are mature enough a few other persons reaction, no issue at all.

I think if you paint your toe nails, you are making a statement.

Just what might that statement be?

They are your toenails, you can do as you please. Does it matter what others think, or say about it?