In my grandparents' youth newspapers such as The Scotsman or The Times worded notices of engagements with the following opening: A marriage has been arranged and will shortly take place.
My grandparents were both well over 21 when they met and simply informed their respective parents that they had met the person they intended to marry and had accepted / been accepted by their intended.
A generation later, my parents did the same.
Even in my generation few young women, by which I mean those under 25 or so, had the courage to insist on marrying a man their parents disapproved of.
Frankly, I do not believe it matters how or where you meet your spouse. Marriage is a lottery, and if it is to succeed requires at times a good deal of hard work from both spouses. Non-interference from their parents etc. helps too.
Today's divorce rate rather points to the fact that love matches are no more likely to suceed than an arranged marriage. Whether this applied to past generations there is no way of knowing. Our grandparents' generation rarely were prepared to face the scandal divorce was in their day, after all, and those who regretted their choice did their best not to let anyone know that.
The liklihood is that if my mother had chosen my husband I would have been bored stiff, which I was not with the man I chose. On the other hand, if she had chosen my sister's husbands (she had three, in her time) my sister might well have been spared an adulterer, and certainly would have been spared two wife-beaters!