I have a DS scarred by a hot drink.
For many years afterwards I was a terrible pain in the arse at toddler groups because I was so anxious.
Ideas I have observed in my panic:
Cups and saucers are maybe a good compromise? You don't get as much but a spill stays in the saucer.
Making sure tea and coffee is served at a fixed time, in one go, is always helpful. Then after a little while you can relax a bit, knowing that any mugs in reach are empty/cold. I had to scrape myself of the ceiling at the M&T group where scalding hot drinks were served the entire time when required, and I'd see mothers holding a full to the brim mug bending over their little ones.
Don't fill mugs right to the top (see above). Leave an inch at the top and the owner doesn't need to be as careful to avoid spilling.
Top each drink up with a bit of cold water. That means it has to be drunk quickly, not left around to cool, and although it would still scald, obviously it wouldn't be as bad.
Hope that helps.