Potty to toilet transition

[LuckyFlash]

This is probably a really silly question. We’ve started potty training my DS who is almost 3. It’s going well and he’s been accident free all week. He’s also dry every night but we’re keeping pull ups on overnight for now while he gets really established with the daytime.
he’s still going on the potty although sometimes wants to go on the toilet. When he does go on the toilet we use the top part of the potty which clips on to the seat. I place him on the toilet because he’s not quite got the balance to get up on his own and I don’t want him to have an accident and then fear the toilet.
this is all pretty fine at home but I’m suddenly feeling clueless as to what we do from here in terms of out and about. Currently we are taking the portable potty out with us. This is a potty but can also be used as a seat on the toilet but it doesn’t clip on so is super unstable for him to use without me sitting him on. It’s a bit bulky so ideally we would get rid of this soon and rely on public toilets…
BUT I can’t imagine he will be big enough for a normal toilet seat for a while. So what are other people doing with their 3 year olds? Do you all have mini foldable toilet seats that you’re carrying around in your handbags? (Lol) or will he just adapt to using a normal toilet seat in a few weeks?
many hope is that he becomes a bit more independent with it soon but given that even at home he would have to clip the toilet seat in and climb up I just can’t see that happening soon.
what am I missing?! What happens next?

I just sit my 2.5 yo on the seat and hold her under the arms. When's she's finished and I need to wipe her bum, I tell her to hold on to my legs. She often puts her head between my knees too which really makes me laugh!

We've never had a problem doing it this way. I only take a portable potty if I know there won't be toilets near by, if not we always just use a normal loo.

Agree with the above, you just have to go with them and hold them. Eventually they figure out how to hold themselves up with their hands on the seat, but while out you still have to go with them to check cleanliness and help - can't actually remember when I stopped this? Maybe by 4?

My 3.5 year old is the size of an 18 month old with a very tiny bottom!

We have two fold up seats one for upstairs and downstairs. We take the one from downstairs out with us. If I forget it, I get her to put her arms around my neck as it gives her more balance

At are trying to transition the potty out too. We have started by only allowing the potty in the toilet downstairs and asking her if she wants to use the toilet or the potty. If she is upstairs she will often accept the toilet for a wee bit for a poo wants us to get the potty. As the potty is downstairs she mostly uses the potty for wees and always for poos.

We have a little step downstairs so that she can get on to the toilet by herself. We are trying to work out if it's good enough and what we should look for in a second step with her being so small we are expecting her to need help getting up for a while.

Our next step will be to reintroduce incentives. With potty training we introduced a jar for coloured pom poms to get her to engage with pooing in the potty. Small treat for 5 bigger treat for 10. We have a few craft exercises hidden away for this purpose. We are currently thinking of 1 for 3 wees and 1 for a poo. Nursery engaged with us last time letting us know when she had earned a pom pom whilst there

Just hold him under his armpits while he sits on the loo, and as he gets more independent accept that he will put his hands on the edge of the loo seat and you'll have to wash very thoroughly 🤢

You go with him and hold him on. Surely you wouldn't be sending a small child into a public loo by themself anyway?

Just lift them on and hold