PIP Planning and following a route to another place, advice please

HI and thank you for all the kind work you do,

I have read all the fact sheets etc. but I am confused and still need advice on this dilemma we have.

My son [in his 30`s and always lived with us] has since a child diagnosed mental health issues such as: autism spectrum disorder. social anxiety disorder, social phobia, depression, insomnia, behavioural problems, low mood.
Previously on DLA but been on PIP For the past 7+ years and always Enhanced care & Standard mobility, the mobility was awarded for planning & following a journey: 1e cannot undertake any journey…. [10 points],

We have received a review your award recently [PIP. 1043], now his going out varies and so the big dilemma is that my son is now bordering/edging on from on the majority of days: 1e cannot undertake any journey…. [10 points], to what we now think could possibly be on the majority of days can go out but: 1f Cannot follow the route of a familiar journey without another person [12 points] as for the past 7+ years on the few days in which he could go out it was only ever with another person [myself/family member], but going out always causes him overwhelming psychological distress [which we have mentioned this distress on previous reviews over the years and once had a phone call years back to help clarify this and we did say at the moment he couldn’t leave the house for the majority of days in a week and so awarded 1e cannot undertake any journey…. [10 points].

Questions are: -

1. should we try for: 1f Cannot follow the route of a familiar journey without another person [12 points] or stick with: 1e cannot undertake any journey…. [10 points], or keep things as is?

2. is it more difficult to get: 1f Cannot follow the route of a familiar journey without another person [12 points] with the mental illnesses he has?

3. If we do try for: 1f Cannot follow the route of a familiar journey without another person [12 points] the form asks you: Tell us if something has changed and when, do we put down todays date for example?

Myself with my son are trying our best for him to get out the house more often but he is worried immensely to the point of more panic attacks [which is one of his conditions] worrying over this, he is scared that even though he is trying his best to go out he might end up losing the mobility award he receives altogether, we just don’t know even how to fully explain this on the form if we do go ahead and try for: 1f Cannot follow the route of a familiar journey without another person [12 points]

Thank you so much for any help or advice on this and thank you again for all the good work you do for everyone on here,