You can do a yeast starter with dry yeast but generally people think it is easier to just buy more packs of dry then to invest in the time and equipment for starters. There are a lot of benefits to dry yeast and a lot of people use liquid strains that came directly from dry so realistically they probably should just use dry. There is some nuance but it gets in the weeds pretty quick.Wow! Thanks this is a lot of great info. I had some yeast plans, but this is making me rethink that. I'll do a little more research with your information now. I'm going to have to bring it from USA to here so I thought dry might be the only option since liquid ones might get ruined with temp changes. I was playing to do a starter but didn't realize that was only used with liquid. I have a lot more reading to do on this. I really appreciate this info!
Yeast is the key to good beer though. Make them your friend.