Terrible cold approach experience at the swimming pool

I (male, aged between 18 and 26) was flirting and joking with two young women at the swimming pool today. They laughed and appeared to have a good time with me. We also played hide and seek around the water channel. Then we went in different directions. Half an hour later, I met those two women again. This when I started joking with them, a few seconds later, out of nowhere, their mother appeared and threateningly asked me to stop interacting with them.

She said something like "I have noticed you speak to my daughters. Stop right now. You know what I mean." with a very hostile and screechy voice. Had I only heard the mother's voice without seeing her, I would have thought she is an eighty year old woman.

Given that I am taller and stronger than the mother, and I lift weights, I was not physically scared of her. However, my point is, if mildly flirting with women like I did is considered inappropriate, how is our species supposed to mate and procreate? By hoping for women to miraculously come to men? Sorry, never happens. The burden of approacing is on men. I wish it weren't, but that's the way evolution happened.