Yes, two individuals can date and marry if there is many years difference between them. If a woman was interested in me and a few decades younger than me, that is our personal business. Age differences is a religious application to society, and when people stopped being religious age differences still continued to be a difference of opinion among society.

How is care for one another any different because of age? Government has learned that if they keep introducing new and interesting produces to the youths of the world; it creates a division between age groups. This has only been going on for the last hundred years or so. Age was not a problem in the 1800's, and governments know it.