Why wouldn't you like to touch a cactus?

Answer 1

A cactus (there are many species) is likely to be covered with very sharp spines. Apart from painfully drawing blood, any dust and bacteria on the spine that punctured your skin could cause a wound or blood infection. Some cacti have spines so close together that it is possible, with care, to pick up the plant with bare hands (similar to someone laying on a bed of nails without harm). Other cacti have spines so long that it is too difficult to handle the plant without very thick leather gauntlets.