Is it normal for a man to call me mam if i'm not old?

I was taught that addressing someone by sir or mam is a polite and respectful thing to do. He wasn't saying you were old. There's no need to be offended.

Some women look older with a mustache.

no worry, people do it just to be nice.

some people are kind of programmed from a young age to say maam

As others pointed out men were raised that saying “ma’ma” as a respectful way to address a woman whose name he dosen’t know. Being offended by that is petty.

Never heard of being respectful?

He was just being respectful.

Dear millenials, stop being offended by people addressing you by sirname or sir or ma'am. It is considered polite and part of good manners. People can't magically know your name without meeting you or you introducing yourself. I have a similar post if anyone is interested in viewing.
https://www.isitnormal.com/post/iin-referring-someone-you-don-t-know-by-name-as-sir-or-madam-is-polite--274423

Not 'luvvie' or 'ducky' or 'sweetie', then?

It is normal, just a sexual perverse name!

Its considered proper regardless of age

Just letting you all know I didn't make this post. I'm finding for the past week, there are posts from my account I didn't make. My account was hacked. I changed my password but please be careful and maybe you should all change yours too.

It's normal. It's just polite

Its polite to do so. I dont call someone sir if I'm older than them, but I do if they have some kind of authority. For women it's just a formality to do so, being a gentleman and all.

Why?

Really? Have manners gone so far down the drain it's considered offensive to call someone "sir", or "mam"...

This is how you normally refer to someone you don't know. It's the proper and respectful way to do it.

Its normal, he was being respectful.

It's normal mam