Sure, they want to start a family the realy means they need to figure out where they are living for the next 5 years at least to get a good preschool lined up.

Paying a premium on the house price is not a huge issue it's step one to starting a family and putting down roots. All that matters is that you can pay your monthly today stop thinking of it as an investment. Figure it's the 13 years of your kids schooling.

The uncertainty of apartments so you hopefully save a bit in a few years on the house price is not worth putting off starting a family.