I think a lot of young people with limited financial resources are using Scirra and if this is true, I can only be very positive about the fact that they improve their creativity this way. In my opinion, Scirra should take that group in serious consideration because they are the developers of tomorrow.
Lets wait and see when the first public betas are released. Don't let fears ruling your game development life.
I agree however there is a legal aspect to subscription contracts that I have brought up to Tom.
In the US a minor under 18 can not enter in to a contract without parent's consent and a subscription is a contract and involves ongoing automatic monthly credit card transactions.
Most minors don't have their own credit cards so that limits their ability to get C3 unless they use their parent's credit card and if the parent is not aware that little johnny or Janey was getting an ongoing subscription with an ongoing monthly charge I can see parents getting very upset when they see that monthly or yearly charge and causing legal headaches for Scirra for forming contracts with minors without parents consent.
That has happened several times with subscription services in the US and most subscription services in the US now require a parent or guardian to sign an affidavit stating they know it is a subscription and they are responsible for that subscription not the child.
So by going to a subscription model Scirra may be limiting C3 to people over 18 only which cuts out a lot of people now using C2 or the free version and it may raise legal headaches down the road.
I am not in any way trying to intimate that Scirra would intentionally do anything illegal and contract laws are very tricky.
Just my opinion and I am not an attorney and I suggest Scirra get legal advice on their subscription model and every country has different rules on contracts and subscription services.