My three, 12, 8, 4 were all six months and even then weren't interested.
I think you need to not be stupid about it and follow your gut instincts but actually make sure they are showing the right signs.
If your kids showing an interest when you are eating, can sit unaided (so they don't choke), has the coordination to pick things up and get it in their mouth, can swallow solids and their tongue doesn't have a reflex that spits food and spoon back out, starts wanting more feeds and waking in the night more often (and you wait for some time to pass to make sure it isn't just a normal growth spurt)
Then yeah maybe they are ready. I do think mums that go through that list and think yeah my kids ready know best. My health visitor said when my son was six weeks old "he's 12 pounds and waking hourly though the night, he's ready for food". He really, really wasn't.
This subjects so inflammatory.
My father in law put a spoonful of Jam in my son's mouth when he was two weeks old. "Look he's licking his lips he wants food" no he doesn't "we did it back in the day never caused any issues" fuck off.
I don't have enough fingers to count my friends who have ibs, Celiac and crohns disease. We were weaned at apparently eight weeks old.
Go through the list and go with your gut instincts he's your baby.