What was the calligraphy style of ordinary people in ancient times?

I always thought that there were not many ordinary people in ancient times who could write calligraphy, so there must be few who could write beautifully.

A commoner has no capital to practice calligraphy at all, and it is difficult to support his family. How can he spare money to buy paper and pens to practice calligraphy?

but if anyone can write, the handwriting must be very beautiful. Because they know that it is not easy to practice calligraphy, they will certainly take advantage of this opportunity.