prematurely expanding the team is one of the most common mistake for founders - i did for my past startups.

the moment another member joins, there are two main projects: 
product market fit, and the team. 

pursuit of pmf fux you hard enough, so it's hard to nurture a team prior to pmf in my perlsonal opinion.

+ also, if the team keeps expanding irrespective of hitting a pmf - the work becomes for the sake of work and not needle moving.

more like creating new work instead of solving existing problems coz the team is big now.