Did you know there are squat toilets all throughout Asia? Though it may appear a bit bizarre to hover over a hole while doing your business, many prefer this style because there is actually less chance of coming in contact with other people's germs.
So if you're planning to travel to these parts of the world, the modern amenities of toiletry won't always follow. That means you sometimes have to bring your own, when a "Squatty Potty" becomes necessary. Bring your own tissue paper. In some places where squat toilets are common, free toilet paper isn't. This is one luxury you're unwilling to do without, bring a bag with you too. There might not be a trash can for used toilet paper, and squat toilets aren't designed for anything but bodily excretions. You'll want to put the used toilet paper in a bag until you can find a trash can.
Instead of being intimidated by the squat toilet, try looking at the experience as an opportunity to become more connected to your body.