People critiquing Muay Thai training?

Hi everyone I’ve trained jiu jitsu for a while on the past but moved and now I’m back on the jiu jitsu train and I’ve also been training Muay Thai along with jujitsu 4 days a week at the gym for both. I’ve been having a blast and learning a lot and meeting cool people.

One thing I’m curious about for everyone else here at least in my case as soon as people started to know that I’ve been training MMA/jujitsu Muay Thai especially distant family members.

I’ve been getting a lot of “critiques”/ unwanted advice from those people telling me all sorts of “techniques”and telling me what I’m doing wrong apparently.

And I even had a couple people even in my family try to size me up I literally saying “I heard you been doing jujitsu, think you could fight me?”

And my personal favorite is people that I know in my family that have never trained ever anything telling me oh I used to go to your gym back in 1998 for 2 years meanwhile the gym that I go to didn’t open until 2002.

After my long rant aside my question is basically what kind of critiques from random people and family members did you get when they know you started training martial arts, especially jujitsu and muay Thai. And how exactly how common it is? Thanks everyone!