Very old US light switches often had both AC and DC current ratings, and the DC rating was noticeably lower due to the arcing problem, even with fast-acting snap action.

My grandfather worked in a Chicago office building that had 110V DC service even into the 1960s. He had to be careful to buy fans, radios, etc. that could run on DC.

Yes, it’s more dangerous, but technically “high voltage” doesn’t start until 1500 V DC (and 1000 V RMS for AC) by most standards (e.g. IEC 60038)