Mentioning previous answers is not intended to discourage further questions, info, or debate.

There's an FAQ section titled "Pike&Shot to Line Formations / Linear Tactics" at https://www.reddit.com/r/AskHistorians/wiki/faq/militaryhistory/earlymodernwar#wiki_pike.26amp.3Bshot_to_line_formations.2Flinear_tactics , roughly 13 postings. They discuss why they had very good reasons for (often but not everyone always) standing in lines shooting at the enemy lines.