Standing

Any Jan babies not interested in rolling over. But tries to stand?? My little one has no interest in rolling over but as soon as I put him down he tries to sit up. And if he’s sitting up he tries to stand ?? I don’t let him do it for long only those couple secs but tummy time isn’t his favorite and no interests in rolling over, he’ll just turn to his sides like he’s looking for the boob. He does have good head control and I know he’s strong enough. Is the milestone of rolling over something that can be skipped?