Bubbles...are you a police officer? The police have loads of graduates, some who went through a normal entry process and some who went through graduate fast track scheme (not all graduates end up on the fast track). This was an option 20 years ago so not sure where you’re getting your information from.
OP...don’t be put off if you want to go for it. I think what people are trying to say is that your future colleagues want people that can help reduce their workload and I think there is a worry that direct entry people may have some transferable skills but won’t have the foundation in policing that teaches them people skills, dealing with confrontation, interviewing technique, policy and procedure, process, terminology, identifying threat, harm and risk.
A direct entry would be expected to hit the ground running and realistically, they would be a burden before they could become an asset as they would be able to do very little unsupervised.
In terms of doing the role with a young family. I do it, expect to be working late shifts and weekends. Can you make it work? You will have to work some overtime and sometimes quick changeover of shifts (finishing late, starting early), however my force at least are family friendly will accommodate you when you need to finish on time to pick the kids up.
In term of the job, it’s impossible to to say whether you will like it or not as it’s a very personal thing. You would still be police officer though and will make arrests, deal with hostility and sometimes aggression, see disturbing things and have all the obligations that come with being a police officer involve (are you prepared to get involved if you see an incident off duty?).
That said, it can be very rewarding. If you’re up for the challenge, go for it! Good luck.