People will tell you all sorts of crazy things. It's usually tomget you to sign up to their product and hand cash over to them.
Before I got my first commercial job I'd estimate from start to finish I flew with around 15 instructors.
I started my MCC and that was with 2 instructors. Onto the TR and I had five different instructors. Onto line training and it was a new guy every day. A few years in I've never had the same instructor more than one sim trip. In fact it's a novelty for me to get the same guy on day one and two of recurrent sims.
When flying you're going to be with a differemt guy or gal every day. May as well get used to it from day one.