I personally think in a way people have now come to consider dating as a serious thing when in the past it wasn’t
My mom who is 82 sees nothing wrong with a woman accepting a date on Friday with one man and a date on Saturday with another man. She is shocked at the possessiveness of people who think 'How can you go out with with someone the very next day you had a date with me.
As I have explained to my mom. In her day a date on Friday meant she went to watch a local hockey game (we are from Canada

) and the guy bought her a hot chocolate and then made sure she got home safely. If my mom wanted to be riskee, she would strech her hand out 1/4 of the way towards the man. If the man wanted to hold it, he had to strech his hand out the whole 3/4 of the other way. She would then go home and day dream about holding his hand. Of course there was nothing wrong with seeing someone else the next day.
However, nowadays having a date on Friday means sexually activity. Whether or not you ‘go all the way’ it is very clear that in less than a month you would be. Only someone of ill repute would then date someon else the next day.
So since dating today implies sex, it also means people are possessive and want exclusivity today.
On the other hand, in a society where no one has premarital sex, until you actually say ‘I do’ you are fair game for anyone to win you over.
When I was younger, in Canada if a man asked me if I had a boyfriend and I said yes, he walked away. He knew he did not have a chance. I spent 4 months in Mexico where women did not have premarital sex. Men would look at my hand and see there was no ring, they would then ask me out. If I said ‘I have a boyfriend’ (mainly to get rid of them) they would say when are you getting married? When I told them we weren’t engaged, they would say ‘Then if he is taking to long to propose, you are free to date me’. In their mind it was OK because I still hadn’t been ‘claimed’
So in a nut shell. In a sexually active culture, dating means ‘commitment’ because even secular people do not want to ‘share bodies’. However, in a Godly society, dating would mean spending time with someone you enjoy and engagement would mean ‘We will soon be one and are now off limits’
CM