It's down to personalities.
DS1 was an absolute dream as a baby, toddler, child and teen. He fed,slept, never tantrumed, loved reading, colouring, had a long attention spell. He could amuse himself for hours. We never knew we had him tbh. He worked hard at school, never got in to trouble, did as he was meant, never had a detention. He's 20 and he and I have never had a screaming, shouting stand up row.
DS2 was a busy boy. He wasn't boisterous or naughty, but he needed to be doing something. He hardly slept. The first time he had a tantrum, in the middle of Boots, I didn't have a clue what to do! He'd ask for a TV program, 30 secs later he'd want something else. He loves being outdoors. He's 18, he's been a joy to have as a teen, very helpful, loving and caring. He looks after me a lot (I'm disabled), but he's still easily bored and can't sit still!