If you can't teach them to pee in the toilet, teach them to pee sitting down so they don't mess up your curtain.

Use a plain plastic shower curtain until their aim gets better.

Try to teach them ... one day their girlfriends/wives are going to hate you for not doing it!

My teenage boys are 13 and 16 years old.

Plastic or vinyl shower curtain. Get a handheld shower head, and spritz and spray the shower curtain down regularly. Taller, elongated toilet.

Inside? pee sitting down. Outside? pee standing up.

And they can clean their own shower curtain and bathroom.

Yes those boys should be cleaning their own bathroom.

Hey, Mom, what type of women do you think your sons can attracr if they can't clean or aim?

Get a glass door for the tub or shower.

They’re 13 and 16. A sad state of affairs. Have a container of Clorox wipes nearby to clean up after themselves.

And another thing..............teach your sons to do their own laundry NOW. Kids need to be self sufficient in order to leave the nest. It doesn't mean you can't offer assistance from time to time, but useless young men are simply useless to everyone especially women.

I put a new one on, i just put a regular one on. I’m pretty sure without a few days, urine will get all over it.