Is it necessary to make mistakes , even when doing so has negative consequences for other people ?

Yes very necessary, it helps us see flaws and help make it better, some cases helps people find motivation and help them further their ambition of continuing. Alot of research must come in order for a final solution. If negative consequences occur then a change must occur to deter any more complications.

Aindependent clause should follow the dependent clause

Depends on the other teams